OSDN Git Service

config: sync with src
authorbonzini <bonzini@138bc75d-0d04-0410-961f-82ee72b054a4>
Wed, 30 Jul 2008 14:57:07 +0000 (14:57 +0000)
committerbonzini <bonzini@138bc75d-0d04-0410-961f-82ee72b054a4>
Wed, 30 Jul 2008 14:57:07 +0000 (14:57 +0000)
2008-07-25  Keith Seitz  <keiths@redhat.com>

* acinclude.m4: Remove libide, libgui, and all the other Tcl
functions.
* tcl.m4: New file.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@138313 138bc75d-0d04-0410-961f-82ee72b054a4

config/ChangeLog
config/acinclude.m4
config/tcl.m4 [new file with mode: 0644]

index 6178044..a35fe14 100644 (file)
@@ -3,6 +3,12 @@
        * mh-pa: New, from gcc/config/pa/x-ada.
        * mh-pa-hpux10: New, from gcc/config/pa/x-ada-hpux10.
 
+2008-07-25  Keith Seitz  <keiths@redhat.com>
+
+       * acinclude.m4: Remove libide, libgui, and all the other Tcl
+       functions.
+       * tcl.m4: New file.
+
 2008-07-11  Joseph Myers  <joseph@codesourcery.com>
 
        * mh-mingw (LDFLAGS): Append to rather than replacing previous
index c7c0ab5..8242b2c 100644 (file)
@@ -497,99 +497,6 @@ AC_SUBST(DEVOHDIR)
 ])
 
 dnl ====================================================================
-dnl find the IDE library and headers.
-AC_DEFUN([CYG_AC_PATH_IDE], [
-AC_MSG_CHECKING(for IDE headers in the source tree)
-dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."
-IDEHDIR=
-IDELIB=
-AC_CACHE_VAL(ac_cv_c_ideh,[
-for i in $dirlist; do
-    if test -f "${srcdir}/$i/libide/src/event.h" ; then
-       ac_cv_c_ideh=`(cd ${srcdir}/$i/libide/src; ${PWDCMD-pwd})`;
-    fi
-done
-])
-if test x"${ac_cv_c_ideh}" != x; then
-    IDEHDIR="-I${ac_cv_c_ideh}"
-    AC_MSG_RESULT(${ac_cv_c_ideh})
-else
-    AC_MSG_RESULT(none)
-fi
-
-AC_MSG_CHECKING(for LIBIDE TCL headers in the source tree)
-AC_CACHE_VAL(ac_cv_c_idetclh,[
-for i in $dirlist; do
-    if test -f "${srcdir}/$i/libidetcl/src/idetcl.h" ; then
-       ac_cv_c_idetclh=`(cd ${srcdir}/$i/libidetcl/src; ${PWDCMD-pwd})`;
-    fi
-done
-])
-if test x"${ac_cv_c_idetclh}" != x; then
-    IDEHDIR="${IDEHDIR} -I${ac_cv_c_idetclh}"
-    AC_MSG_RESULT(${ac_cv_c_idetclh})
-else
-    AC_MSG_RESULT(none)
-fi
-
-AC_MSG_CHECKING(for IDE headers in the build tree)
-AC_CACHE_VAL(ac_cv_c_ideh2,[
-for i in $dirlist; do
-    if test -f "$i/libide/src/Makefile" ; then
-       ac_cv_c_ideh2=`(cd $i/libide/src; ${PWDCMD-pwd})`;
-    fi
-done
-])
-if test x"${ac_cv_c_ideh2}" != x; then
-    IDEHDIR="${IDEHDIR} -I${ac_cv_c_ideh2}"
-    AC_MSG_RESULT(${ac_cv_c_ideh2})
-else
-    AC_MSG_RESULT(none)
-fi
-
-dnl look for the library
-AC_MSG_CHECKING(for IDE library)
-AC_CACHE_VAL(ac_cv_c_idelib,[
-if test x"${ac_cv_c_idelib}" = x ; then
-    for i in $dirlist; do
-      if test -f "$i/libide/src/Makefile" ; then
-        ac_cv_c_idelib=`(cd $i/libide/src; ${PWDCMD-pwd})`
-        break
-      fi
-    done
-fi]) 
-if test x"${ac_cv_c_idelib}" != x ; then
-     IDELIB="-L${ac_cv_c_idelib}"
-     AC_MSG_RESULT(${ac_cv_c_idelib})
-else
-     AC_MSG_RESULT(none)
-fi
-
-dnl find libiddetcl.a if it exists
-AC_MSG_CHECKING(for IDE TCL library)
-AC_CACHE_VAL(ac_cv_c_idetcllib,[
-if test x"${ac_cv_c_idetcllib}" = x ; then
-    for i in $dirlist; do
-      if test -f "$i/libidetcl/src/Makefile" ; then
-        ac_cv_c_idetcllib=`(cd $i/libidetcl/src; ${PWDCMD-pwd})`
-        break
-      fi
-    done
-fi
-]) 
-if test x"${ac_cv_c_idetcllib}" != x ; then
-     IDELIB="${IDELIB} -L${ac_cv_c_idetcllib}"
-     IDETCLLIB="-lidetcl"
-     AC_MSG_RESULT(${ac_cv_c_idetcllib})
-else
-     AC_MSG_RESULT(none)
-fi
-AC_SUBST(IDEHDIR)
-AC_SUBST(IDELIB)
-AC_SUBST(IDETCLLIB)
-])
-
-dnl ====================================================================
 dnl Find all the ILU headers and libraries
 AC_DEFUN([CYG_AC_PATH_ILU], [
 AC_MSG_CHECKING(for ILU kernel headers in the source tree)
@@ -837,1187 +744,3 @@ fi
 AC_LANG_RESTORE
 AC_SUBST(LIBGCC)
 ])
-
-dnl ====================================================================
-dnl Ok, lets find the tcl source trees so we can use the headers
-dnl Warning: transition of version 9 to 10 will break this algorithm
-dnl because 10 sorts before 9. We also look for just tcl. We have to
-dnl be careful that we don't match stuff like tclX by accident.
-dnl the alternative search directory is involked by --with-tclinclude
-AC_DEFUN([CYG_AC_PATH_TCL], [
-    CYG_AC_PATH_TCLH
-    CYG_AC_PATH_TCLCONFIG
-    CYG_AC_LOAD_TCLCONFIG
-])
-AC_DEFUN([CYG_AC_PATH_TCLH], [
-dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."
-no_tcl=true
-AC_MSG_CHECKING(for Tcl headers in the source tree)
-AC_ARG_WITH(tclinclude, [  --with-tclinclude       directory where tcl headers are], with_tclinclude=${withval})
-AC_CACHE_VAL(ac_cv_c_tclh,[
-dnl first check to see if --with-tclinclude was specified
-if test x"${with_tclinclude}" != x ; then
-  if test -f ${with_tclinclude}/tcl.h ; then
-    ac_cv_c_tclh=`(cd ${with_tclinclude}; ${PWDCMD-pwd})`
-  elif test -f ${with_tclinclude}/generic/tcl.h ; then
-    ac_cv_c_tclh=`(cd ${with_tclinclude}/generic; ${PWDCMD-pwd})`
-  else
-    AC_MSG_ERROR([${with_tclinclude} directory doesn't contain headers])
-  fi
-fi
-
-dnl next check if it came with Tcl configuration file
-if test x"${ac_cv_c_tclconfig}" != x ; then
-  for i in $dirlist; do
-    if test -f $ac_cv_c_tclconfig/$i/generic/tcl.h ; then
-      ac_cv_c_tclh=`(cd $ac_cv_c_tclconfig/$i/generic; ${PWDCMD-pwd})`
-      break
-    fi
-  done
-fi
-
-dnl next check in private source directory
-dnl since ls returns lowest version numbers first, reverse its output
-if test x"${ac_cv_c_tclh}" = x ; then
-    dnl find the top level Tcl source directory
-    for i in $dirlist; do
-        if test -n "`ls -dr $srcdir/$i/tcl* 2>/dev/null`" ; then
-           tclpath=$srcdir/$i
-           break
-       fi
-    done
-
-    dnl find the exact Tcl source dir. We do it this way, cause there
-    dnl might be multiple version of Tcl, and we want the most recent one.
-    for i in `ls -dr $tclpath/tcl* 2>/dev/null ` ; do
-        if test -f $i/generic/tcl.h ; then
-          ac_cv_c_tclh=`(cd $i/generic; ${PWDCMD-pwd})`
-          break
-        fi
-    done
-fi
-
-dnl check if its installed with the compiler
-if test x"${ac_cv_c_tclh}" = x ; then
-    dnl Get the path to the compiler
-    ccpath=`which ${CC}  | sed -e 's:/bin/.*::'`/include
-    if test -f $ccpath/tcl.h; then
-        ac_cv_c_tclh=$ccpath
-    fi
-fi
-
-dnl see if one is installed
-if test x"${ac_cv_c_tclh}" = x ; then
-   AC_MSG_RESULT(none)
-   AC_CHECK_HEADER(tcl.h, ac_cv_c_tclh=installed, ac_cv_c_tclh="")
-else
-   AC_MSG_RESULT(${ac_cv_c_tclh})
-fi
-])
-  TCLHDIR=""
-if test x"${ac_cv_c_tclh}" = x ; then
-    AC_MSG_ERROR([Can't find any Tcl headers])
-fi
-if test x"${ac_cv_c_tclh}" != x ; then
-    no_tcl=""
-    if test x"${ac_cv_c_tclh}" != x"installed" ; then
-       if test x"${CC}" = xcl ; then
-           tmp="`cygpath --windows ${ac_cv_c_tclh}`"
-           ac_cv_c_tclh="`echo $tmp | sed -e s#\\\\\\\\#/#g`"
-       fi
-        AC_MSG_RESULT(${ac_cv_c_tclh})
-        TCLHDIR="-I${ac_cv_c_tclh}"
-    fi
-fi
-
-AC_SUBST(TCLHDIR)
-])
-
-dnl ====================================================================
-dnl Ok, lets find the tcl configuration
-AC_DEFUN([CYG_AC_PATH_TCLCONFIG], [
-dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."
-dnl First, look for one uninstalled.  
-dnl the alternative search directory is invoked by --with-tclconfig
-if test x"${no_tcl}" = x ; then
-  dnl we reset no_tcl in case something fails here
-    no_tcl=true
-    AC_ARG_WITH(tclconfig, [  --with-tclconfig           directory containing tcl configuration (tclConfig.sh)],
-         with_tclconfig=${withval})
-    AC_MSG_CHECKING([for Tcl configuration script])
-    AC_CACHE_VAL(ac_cv_c_tclconfig,[
-
-    dnl First check to see if --with-tclconfig was specified.
-    if test x"${with_tclconfig}" != x ; then
-        if test -f "${with_tclconfig}/tclConfig.sh" ; then
-            ac_cv_c_tclconfig=`(cd ${with_tclconfig}; ${PWDCMD-pwd})`
-        else
-            AC_MSG_ERROR([${with_tclconfig} directory doesn't contain tclConfig.sh])
-        fi
-    fi
-
-    dnl next check if it came with Tcl configuration file in the source tree
-    if test x"${ac_cv_c_tclconfig}" = x ; then
-        for i in $dirlist; do
-            dnl need to test both unix and win directories, since 
-            dnl cygwin's tkConfig.sh could be in either directory depending
-            dnl on the cygwin port of tcl.
-            if test -f $srcdir/$i/unix/tclConfig.sh ; then
-                ac_cv_c_tclconfig=`(cd $srcdir/$i/unix; ${PWDCMD-pwd})`
-               break
-            fi
-            if test -f $srcdir/$i/win/tclConfig.sh ; then
-                ac_cv_c_tclconfig=`(cd $srcdir/$i/win; ${PWDCMD-pwd})`
-               break
-            fi
-        done
-    fi
-    dnl check in a few other locations
-    if test x"${ac_cv_c_tclconfig}" = x ; then
-        dnl find the top level Tcl source directory
-        for i in $dirlist; do
-            if test -n "`ls -dr $i/tcl* 2>/dev/null`" ; then
-               tclconfpath=$i
-               break
-           fi
-        done
-
-        dnl find the exact Tcl dir. We do it this way, cause there
-        dnl might be multiple version of Tcl, and we want the most recent one.
-        for i in `ls -dr $tclconfpath/tcl* 2>/dev/null ` ; do
-            dnl need to test both unix and win directories, since 
-            dnl cygwin's tclConfig.sh could be in either directory depending
-            dnl on the cygwin port of tcl.
-            if test -f $i/unix/tclConfig.sh ; then
-                ac_cv_c_tclconfig=`(cd $i/unix; ${PWDCMD-pwd})`
-                break
-            fi
-            if test -f $i/win/tclConfig.sh ; then
-                ac_cv_c_tclconfig=`(cd $i/win; ${PWDCMD-pwd})`
-                break
-            fi
-        done
-    fi
-
-    dnl Check to see if it's installed. We have to look in the $CC path
-    dnl to find it, cause our $prefix may not match the compilers.
-    if test x"${ac_cv_c_tclconfig}" = x ; then
-        dnl Get the path to the compiler
-       ccpath=`which ${CC}  | sed -e 's:/bin/.*::'`/lib
-        if test -f $ccpath/tclConfig.sh; then
-           ac_cv_c_tclconfig=$ccpath
-        fi
-    fi
-    ]) dnl end of cache_val
-
-    if test x"${ac_cv_c_tclconfig}" = x ; then
-        TCLCONFIG=""
-        AC_MSG_WARN(Can't find Tcl configuration definitions)
-    else
-        no_tcl=""
-        TCLCONFIG=${ac_cv_c_tclconfig}/tclConfig.sh
-        AC_MSG_RESULT(${TCLCONFIG})
-     fi
-fi
-AC_SUBST(TCLCONFIG)
-])
-
-dnl Defined as a separate macro so we don't have to cache the values
-dnl from PATH_TCLCONFIG (because this can also be cached).
-AC_DEFUN([CYG_AC_LOAD_TCLCONFIG], [
-    . $TCLCONFIG
-
-dnl AC_SUBST(TCL_VERSION)
-dnl AC_SUBST(TCL_MAJOR_VERSION)
-dnl AC_SUBST(TCL_MINOR_VERSION)
-dnl AC_SUBST(TCL_CC)
-    AC_SUBST(TCL_DEFS)
-
-dnl not used, don't export to save symbols
-    AC_SUBST(TCL_LIB_FILE)
-    AC_SUBST(TCL_LIB_FULL_PATH)
-    AC_SUBST(TCL_LIBS)
-dnl not used, don't export to save symbols
-dnl    AC_SUBST(TCL_PREFIX)
-
-    AC_SUBST(TCL_CFLAGS)
-
-dnl not used, don't export to save symbols
-dnl    AC_SUBST(TCL_EXEC_PREFIX)
-
-    AC_SUBST(TCL_SHLIB_CFLAGS)
-    AC_SUBST(TCL_SHLIB_LD)
-dnl don't export, not used outside of configure
-dnl AC_SUBST(TCL_SHLIB_LD_LIBS)
-dnl AC_SUBST(TCL_SHLIB_SUFFIX)
-dnl not used, don't export to save symbols
-dnl AC_SUBST(TCL_DL_LIBS)
-    AC_SUBST(TCL_LD_FLAGS)
-    AC_SUBST(TCL_LD_SEARCH_FLAGS)
-dnl don't export, not used outside of configure
-dnl AC_SUBST(TCL_COMPAT_OBJS)
-    AC_SUBST(TCL_RANLIB)
-    AC_SUBST(TCL_BUILD_LIB_SPEC)
-    AC_SUBST(TCL_LIB_SPEC)
-    AC_SUBST(TCL_BIN_DIR)
-dnl AC_SUBST(TCL_LIB_VERSIONS_OK)
-
-dnl not used, don't export to save symbols
-dnl    AC_SUBST(TCL_SHARED_LIB_SUFFIX)
-
-dnl not used, don't export to save symbols
-dnl    AC_SUBST(TCL_UNSHARED_LIB_SUFFIX)
-])
-
-dnl ====================================================================
-AC_DEFUN([CYG_AC_PATH_TK], [
-    CYG_AC_PATH_TKH
-    CYG_AC_PATH_TKCONFIG
-    CYG_AC_LOAD_TKCONFIG
-])
-AC_DEFUN([CYG_AC_PATH_TKH], [
-#
-# Ok, lets find the tk source trees so we can use the headers
-# If the directory (presumably symlink) named "tk" exists, use that one
-# in preference to any others.  Same logic is used when choosing library
-# and again with Tcl. The search order is the best place to look first, then in
-# decreasing significance. The loop breaks if the trigger file is found.
-# Note the gross little conversion here of srcdir by cd'ing to the found
-# directory. This converts the path from a relative to an absolute, so
-# recursive cache variables for the path will work right. We check all
-# the possible paths in one loop rather than many separate loops to speed
-# things up.
-# the alternative search directory is involked by --with-tkinclude
-#
-dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."
-no_tk=true
-AC_MSG_CHECKING(for Tk headers in the source tree)
-AC_ARG_WITH(tkinclude, [  --with-tkinclude       directory where tk headers are], with_tkinclude=${withval})
-AC_CACHE_VAL(ac_cv_c_tkh,[
-dnl first check to see if --with-tkinclude was specified
-if test x"${with_tkinclude}" != x ; then
-  if test -f ${with_tkinclude}/tk.h ; then
-    ac_cv_c_tkh=`(cd ${with_tkinclude}; ${PWDCMD-pwd})`
-  elif test -f ${with_tkinclude}/generic/tk.h ; then
-    ac_cv_c_tkh=`(cd ${with_tkinclude}/generic; ${PWDCMD-pwd})`
-  else
-    AC_MSG_ERROR([${with_tkinclude} directory doesn't contain headers])
-  fi
-fi
-
-dnl next check if it came with Tk configuration file
-if test x"${ac_cv_c_tkconfig}" != x ; then
-  for i in $dirlist; do
-    if test -f $ac_cv_c_tkconfig/$i/generic/tk.h ; then
-      ac_cv_c_tkh=`(cd $ac_cv_c_tkconfig/$i/generic; ${PWDCMD-pwd})`
-      break
-    fi
-  done
-fi
-
-dnl next check in private source directory
-dnl since ls returns lowest version numbers first, reverse its output
-if test x"${ac_cv_c_tkh}" = x ; then
-    dnl find the top level Tk source directory
-    for i in $dirlist; do
-        if test -n "`ls -dr $srcdir/$i/tk* 2>/dev/null`" ; then
-           tkpath=$srcdir/$i
-           break
-       fi
-    done
-
-    dnl find the exact Tk source dir. We do it this way, cause there
-    dnl might be multiple version of Tk, and we want the most recent one.
-    for i in `ls -dr $tkpath/tk* 2>/dev/null ` ; do
-        if test -f $i/generic/tk.h ; then
-          ac_cv_c_tkh=`(cd $i/generic; ${PWDCMD-pwd})`
-          break
-        fi
-    done
-fi
-
-dnl see if one is installed
-if test x"${ac_cv_c_tkh}" = x ; then
-    AC_MSG_RESULT(none)
-    dnl Get the path to the compiler. We do it this way instead of using
-    dnl AC_CHECK_HEADER, cause this doesn't depend in having X configured.
-    ccpath=`which ${CC}  | sed -e 's:/bin/.*::'`/include
-    if test -f $ccpath/tk.h; then
-       ac_cv_c_tkh=$ccpath
-    fi
-else
-   AC_MSG_RESULT(${ac_cv_c_tkh})
-fi
-])
-  TKHDIR=""
-if test x"${ac_cv_c_tkh}" = x ; then
-    AC_MSG_ERROR([Can't find any Tk headers])
-fi
-if test x"${ac_cv_c_tkh}" != x ; then
-    no_tk=""
-    if test x"${ac_cv_c_tkh}" != x"installed" ; then
-       if test x"${CC}" = xcl ; then
-           tmp="`cygpath --windows ${ac_cv_c_tkh}`"
-           ac_cv_c_tkh="`echo $tmp | sed -e s#\\\\\\\\#/#g`"
-       fi
-        AC_MSG_RESULT([found in ${ac_cv_c_tkh}])
-        TKHDIR="-I${ac_cv_c_tkh}"
-    fi
-fi
-
-AC_SUBST(TKHDIR)
-])
-
-AC_DEFUN([CYG_AC_PATH_TKCONFIG], [
-dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."
-dnl First, look for one uninstalled.  
-dnl the alternative search directory is invoked by --with-tkconfig
-if test x"${no_tk}" = x ; then
-  dnl we reset no_tk in case something fails here
-    no_tk=true
-    AC_ARG_WITH(tkconfig, [  --with-tkconfig           directory containing tk configuration (tkConfig.sh)],
-         with_tkconfig=${withval})
-    AC_MSG_CHECKING([for Tk configuration script])
-    AC_CACHE_VAL(ac_cv_c_tkconfig,[
-
-    dnl First check to see if --with-tkconfig was specified.
-    if test x"${with_tkconfig}" != x ; then
-        if test -f "${with_tkconfig}/tkConfig.sh" ; then
-            ac_cv_c_tkconfig=`(cd ${with_tkconfig}; ${PWDCMD-pwd})`
-        else
-            AC_MSG_ERROR([${with_tkconfig} directory doesn't contain tkConfig.sh])
-        fi
-    fi
-
-    dnl next check if it came with Tk configuration file in the source tree
-    if test x"${ac_cv_c_tkconfig}" = x ; then
-        for i in $dirlist; do
-            dnl need to test both unix and win directories, since 
-            dnl cygwin's tkConfig.sh could be in either directory depending
-            dnl on the cygwin port of tk.
-            if test -f $srcdir/$i/unix/tkConfig.sh ; then
-                ac_cv_c_tkconfig=`(cd $srcdir/$i/unix; ${PWDCMD-pwd})`
-               break
-            fi
-            if test -f $srcdir/$i/win/tkConfig.sh ; then
-                ac_cv_c_tkconfig=`(cd $srcdir/$i/unix; ${PWDCMD-pwd})`
-               break
-            fi
-        done
-    fi
-    dnl check in a few other locations
-    if test x"${ac_cv_c_tkconfig}" = x ; then
-        dnl find the top level Tk source directory
-        for i in $dirlist; do
-            if test -n "`ls -dr $i/tk* 2>/dev/null`" ; then
-               tkconfpath=$i
-               break
-           fi
-        done
-
-        dnl find the exact Tk dir. We do it this way, cause there
-        dnl might be multiple version of Tk, and we want the most recent one.
-        for i in `ls -dr $tkconfpath/tk* 2>/dev/null ` ; do
-            dnl need to test both unix and win directories, since 
-            dnl cygwin's tkConfig.sh could be in either directory depending
-            dnl on the cygwin port of tk.
-            if test -f $i/unix/tkConfig.sh ; then
-                ac_cv_c_tkconfig=`(cd $i/unix; ${PWDCMD-pwd})`
-                break
-            fi
-            if test -f $i/win/tkConfig.sh ; then
-                ac_cv_c_tkconfig=`(cd $i/win; ${PWDCMD-pwd})`
-                break
-            fi
-        done
-    fi
-
-    dnl Check to see if it's installed. We have to look in the $CC path
-    dnl to find it, cause our $prefix may not match the compilers.
-    if test x"${ac_cv_c_tkconfig}" = x ; then
-        dnl Get the path to the compiler
-       ccpath=`which ${CC}  | sed -e 's:/bin/.*::'`/lib
-        if test -f $ccpath/tkConfig.sh; then
-           ac_cv_c_tkconfig=$ccpath
-        fi
-    fi
-    ]) dnl end of cache_val
-
-    if test x"${ac_cv_c_tkconfig}" = x ; then
-        TKCONFIG=""
-        AC_MSG_WARN(Can't find Tk configuration definitions)
-    else
-        no_tk=""
-        TKCONFIG=${ac_cv_c_tkconfig}/tkConfig.sh
-        AC_MSG_RESULT(${TKCONFIG})
-     fi
-fi
-AC_SUBST(TKCONFIG)
-])
-
-dnl Defined as a separate macro so we don't have to cache the values
-dnl from PATH_TKCONFIG (because this can also be cached).
-AC_DEFUN([CYG_AC_LOAD_TKCONFIG], [
-    if test -f "$TKCONFIG" ; then
-      . $TKCONFIG
-    fi
-
-    AC_SUBST(TK_VERSION)
-dnl not actually used, don't export to save symbols
-dnl    AC_SUBST(TK_MAJOR_VERSION)
-dnl    AC_SUBST(TK_MINOR_VERSION)
-    AC_SUBST(TK_DEFS)
-
-dnl not used, don't export to save symbols
-    AC_SUBST(TK_LIB_FILE)
-    AC_SUBST(TK_LIB_FULL_PATH)
-    AC_SUBST(TK_LIBS)
-dnl not used, don't export to save symbols
-dnl    AC_SUBST(TK_PREFIX)
-
-dnl not used, don't export to save symbols
-dnl    AC_SUBST(TK_EXEC_PREFIX)
-    AC_SUBST(TK_BUILD_INCLUDES)
-    AC_SUBST(TK_XINCLUDES)
-    AC_SUBST(TK_XLIBSW)
-    AC_SUBST(TK_BUILD_LIB_SPEC)
-    AC_SUBST(TK_LIB_SPEC)
-])
-
-dnl ====================================================================
-dnl Ok, lets find the itcl source trees so we can use the headers
-dnl the alternative search directory is involked by --with-itclinclude
-AC_DEFUN([CYG_AC_PATH_ITCL], [
-    CYG_AC_PATH_ITCLH
-    CYG_AC_PATH_ITCLLIB
-    CYG_AC_PATH_ITCLSH
-    CYG_AC_PATH_ITCLMKIDX
-])
-AC_DEFUN([CYG_AC_PATH_ITCLH], [
-dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."
-no_itcl=true
-AC_MSG_CHECKING(for Itcl headers in the source tree)
-AC_ARG_WITH(itclinclude, [  --with-itclinclude       directory where itcl headers are], with_itclinclude=${withval})
-AC_CACHE_VAL(ac_cv_c_itclh,[
-dnl first check to see if --with-itclinclude was specified
-if test x"${with_itclinclude}" != x ; then
-  if test -f ${with_itclinclude}/itcl.h ; then
-    ac_cv_c_itclh=`(cd ${with_itclinclude}; ${PWDCMD-pwd})`
-  elif test -f ${with_itclinclude}/src/itcl.h ; then
-    ac_cv_c_itclh=`(cd ${with_itclinclude}/src; ${PWDCMD-pwd})`
-  else
-    AC_MSG_ERROR([${with_itclinclude} directory doesn't contain headers])
-  fi
-fi
-
-dnl next check if it came with Itcl configuration file
-if test x"${ac_cv_c_itclconfig}" != x ; then
-  for i in $dirlist; do
-    if test -f $ac_cv_c_itclconfig/$i/src/itcl.h ; then
-      ac_cv_c_itclh=`(cd $ac_cv_c_itclconfig/$i/src; ${PWDCMD-pwd})`
-      break
-    fi
-  done
-fi
-
-dnl next check in private source directory
-dnl since ls returns lowest version numbers first, reverse its output
-if test x"${ac_cv_c_itclh}" = x ; then
-    dnl find the top level Itcl source directory
-    for i in $dirlist; do
-        if test -n "`ls -dr $srcdir/$i/itcl* 2>/dev/null`" ; then
-           itclpath=$srcdir/$i
-           break
-       fi
-    done
-
-    dnl find the exact Itcl source dir. We do it this way, cause there
-    dnl might be multiple version of Itcl, and we want the most recent one.
-    for i in `ls -dr $itclpath/itcl* 2>/dev/null ` ; do
-        if test -f $i/src/itcl.h ; then
-          ac_cv_c_itclh=`(cd $i/src; ${PWDCMD-pwd})`
-          break
-        fi
-    done
-fi
-
-dnl see if one is installed
-if test x"${ac_cv_c_itclh}" = x ; then
-   AC_MSG_RESULT(none)
-   AC_CHECK_HEADER(itcl.h, ac_cv_c_itclh=installed, ac_cv_c_itclh="")
-else
-   AC_MSG_RESULT(${ac_cv_c_itclh})
-fi
-])
-  ITCLHDIR=""
-if test x"${ac_cv_c_itclh}" = x ; then
-    AC_MSG_ERROR([Can't find any Itcl headers])
-fi
-if test x"${ac_cv_c_itclh}" != x ; then
-    no_itcl=""
-    if test x"${ac_cv_c_itclh}" != x"installed" ; then
-        AC_MSG_RESULT(${ac_cv_c_itclh})
-        ITCLHDIR="-I${ac_cv_c_itclh}"
-    fi
-fi
-
-AC_SUBST(ITCLHDIR)
-])
-
-dnl Ok, lets find the itcl library
-dnl First, look for one uninstalled.  
-dnl the alternative search directory is invoked by --with-itcllib
-AC_DEFUN([CYG_AC_PATH_ITCLLIB], [
-dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."
-if test x"${no_itcl}" = x ; then
-    dnl we reset no_itcl incase something fails here
-    no_itcl=true
-    AC_ARG_WITH(itcllib,
-       [  --with-itcllib           directory where the itcl library is],
-        with_itcllib=${withval})
-    AC_MSG_CHECKING([for Itcl library])
-    AC_CACHE_VAL(ac_cv_c_itcllib,[
-    dnl First check to see if --with-itcllib was specified.
-    if test x"${with_itcllib}" != x ; then
-        if test -f "${with_itcllib}/libitcl$TCL_SHARED_LIB_SUFFIX" ; then
-            ac_cv_c_itcllib=`(cd ${with_itcllib}; ${PWDCMD-pwd})`/libitcl$TCL_SHARED_LIB_SUFFIX
-       else
-           if test -f "${with_itcllib}/libitcl$TCL_UNSHARED_LIB_SUFFIX"; then
-               ac_cv_c_itcllib=`(cd ${with_itcllib}; ${PWDCMD-pwd})`/libitcl$TCL_UNSHARED_LIB_SUFFIX
-           fi
-       fi
-    fi
-    dnl then check for a  Itcl library. Since these are uninstalled,
-    dnl use the simple lib name root. 
-    if test x"${ac_cv_c_itcllib}" = x ; then
-        dnl find the top level Itcl build directory
-        for i in $dirlist; do
-            if test -n "`ls -dr $i/itcl* 2>/dev/null`" ; then
-               itclpath=$i/itcl
-               break
-           fi
-        done
-        dnl Itcl 7.5 and greater puts library in subdir.  Look there first.
-        if test -f "$itclpath/src/libitcl.$TCL_SHLIB_SUFFIX" ; then
-            ac_cv_c_itcllib=`(cd $itclpath/src; ${PWDCMD-pwd})`
-        elif test -f "$itclpath/src/libitcl.a"; then
-            ac_cv_c_itcllib=`(cd $itclpath/src; ${PWDCMD-pwd})`
-       fi
-    fi
-    dnl check in a few other private locations
-    if test x"${ac_cv_c_itcllib}" = x ; then
-        for i in ${dirlist}; do
-            if test -n "`ls -dr ${srcdir}/$i/itcl* 2>/dev/null`" ; then
-               itclpath=${srcdir}/$i
-               break
-           fi
-        done
-        for i in `ls -dr ${itclpath}/itcl* 2>/dev/null` ; do
-            dnl Itcl 7.5 and greater puts library in subdir.  Look there first.
-            if test -f "$i/src/libitcl$TCL_SHLIB_SUFFIX" ; then
-               ac_cv_c_itcllib=`(cd $i/src; ${PWDCMD-pwd})`
-               break
-            elif test -f "$i/src/libitcl.a"; then
-               ac_cv_c_itcllib=`(cd $i/src; ${PWDCMD-pwd})`
-               break
-           fi  
-        done
-    fi
-
-    dnl see if one is conveniently installed with the compiler
-    if test x"${ac_cv_c_itcllib}" = x ; then
-        dnl Get the path to the compiler
-       ccpath=`which ${CC}  | sed -e 's:/bin/.*::'`/lib
-        dnl Itcl 7.5 and greater puts library in subdir.  Look there first.
-        if test -f "${ccpath}/libitcl$TCL_SHLIB_SUFFIX" ; then
-           ac_cv_c_itcllib=`(cd ${ccpath}; ${PWDCMD-pwd})`
-        elif test -f "${ccpath}/libitcl.a"; then
-           ac_cv_c_itcllib=`(cd ${ccpath}; ${PWDCMD-pwd})`
-        fi
-    fi
-    ])
-    if test x"${ac_cv_c_itcllib}" = x ; then
-        ITCLLIB=""
-        AC_MSG_WARN(Can't find Itcl library)
-    else
-        ITCLLIB="-L${ac_cv_c_itcllib}"
-        AC_MSG_RESULT(${ac_cv_c_itcllib})
-        no_itcl=""
-    fi
-fi
-
-AC_PROVIDE([$0])
-AC_SUBST(ITCLLIB)
-])
-
-
-dnl ====================================================================
-dnl Ok, lets find the itcl source trees so we can use the itcl_sh script
-dnl the alternative search directory is involked by --with-itclinclude
-AC_DEFUN([CYG_AC_PATH_ITCLSH], [
-dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."
-no_itcl=true
-AC_MSG_CHECKING(for the itcl_sh script)
-AC_ARG_WITH(itclinclude, [  --with-itclinclude       directory where itcl headers are], with_itclinclude=${withval})
-AC_CACHE_VAL(ac_cv_c_itclsh,[
-dnl first check to see if --with-itclinclude was specified
-if test x"${with_itclinclude}" != x ; then
-  if test -f ${with_itclinclude}/itcl_sh ; then
-    ac_cv_c_itclsh=`(cd ${with_itclinclude}; ${PWDCMD-pwd})`
-  elif test -f ${with_itclinclude}/src/itcl_sh ; then
-    ac_cv_c_itclsh=`(cd ${with_itclinclude}/src; ${PWDCMD-pwd})`
-  else
-    AC_MSG_ERROR([${with_itclinclude} directory doesn't contain itcl_sh])
-  fi
-fi
-
-dnl next check in private source directory
-dnl since ls returns lowest version numbers first, reverse its output
-if test x"${ac_cv_c_itclsh}" = x ; then
-    dnl find the top level Itcl source directory
-    for i in $dirlist; do
-        if test -n "`ls -dr $srcdir/$i/itcl* 2>/dev/null`" ; then
-           itclpath=$srcdir/$i
-           break
-       fi
-    done
-
-    dnl find the exact Itcl source dir. We do it this way, cause there
-    dnl might be multiple version of Itcl, and we want the most recent one.
-    for i in `ls -dr $itclpath/itcl* 2>/dev/null ` ; do
-        if test -f $i/src/itcl_sh ; then
-          ac_cv_c_itclsh=`(cd $i/src; ${PWDCMD-pwd})`/itcl_sh
-          break
-        fi
-    done
-fi
-
-dnl see if one is installed
-if test x"${ac_cv_c_itclsh}" = x ; then
-   AC_MSG_RESULT(none)
-   AC_PATH_PROG(ac_cv_c_itclsh, itcl_sh)
-else
-   AC_MSG_RESULT(${ac_cv_c_itclsh})
-fi
-])
-
-if test x"${ac_cv_c_itclsh}" = x ; then
-    AC_MSG_ERROR([Can't find the itcl_sh script])
-fi
-if test x"${ac_cv_c_itclsh}" != x ; then
-    no_itcl=""
-    AC_MSG_RESULT(${ac_cv_c_itclsh})
-    ITCLSH="${ac_cv_c_itclsh}"
-fi
-AC_SUBST(ITCLSH)
-])
-
-
-dnl ====================================================================
-dnl Ok, lets find the itcl source trees so we can use the itcl_sh script
-dnl the alternative search directory is involked by --with-itclinclude
-AC_DEFUN([CYG_AC_PATH_ITCLMKIDX], [
-dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."
-no_itcl=true
-AC_MSG_CHECKING(for itcl_mkindex.tcl script)
-AC_ARG_WITH(itclinclude, [  --with-itclinclude       directory where itcl headers are], with_itclinclude=${withval})
-AC_CACHE_VAL(ac_cv_c_itclmkidx,[
-dnl first check to see if --with-itclinclude was specified
-if test x"${with_itclinclude}" != x ; then
-  if test -f ${with_itclinclude}/itcl_sh ; then
-    ac_cv_c_itclmkidx=`(cd ${with_itclinclude}; ${PWDCMD-pwd})`
-  elif test -f ${with_itclinclude}/src/itcl_sh ; then
-    ac_cv_c_itclmkidx=`(cd ${with_itclinclude}/src; ${PWDCMD-pwd})`
-  else
-    AC_MSG_ERROR([${with_itclinclude} directory doesn't contain itcl_sh])
-  fi
-fi
-
-dnl next check in private source directory
-dnl since ls returns lowest version numbers first, reverse its output
-if test x"${ac_cv_c_itclmkidx}" = x ; then
-    dnl find the top level Itcl source directory
-    for i in $dirlist; do
-        if test -n "`ls -dr $srcdir/$i/itcl* 2>/dev/null`" ; then
-           itclpath=$srcdir/$i
-           break
-       fi
-    done
-
-    dnl find the exact Itcl source dir. We do it this way, cause there
-    dnl might be multiple version of Itcl, and we want the most recent one.
-    for i in `ls -dr $itclpath/itcl* 2>/dev/null ` ; do
-        if test -f $i/library/itcl_mkindex.tcl ; then
-          ac_cv_c_itclmkidx=`(cd $i/library; ${PWDCMD-pwd})`/itcl_mkindex.tcl
-          break
-        fi
-    done
-fi
-if test x"${ac_cv_c_itclmkidx}" = x ; then
-    dnl Get the path to the compiler
-    ccpath=`which ${CC}  | sed -e 's:/bin/.*::'`/share
-    dnl Itcl 7.5 and greater puts library in subdir.  Look there first.
-    for i in `ls -dr $ccpath/itcl* 2>/dev/null ` ; do
-        if test -f $i/itcl_mkindex.tcl ; then
-            ac_cv_c_itclmkidx=`(cd $i; ${PWDCMD-pwd})`/itcl_mkindex.tcl
-            break
-        fi
-    done
-fi
-])
-
-if test x"${ac_cv_c_itclmkidx}" = x ; then
-    AC_MSG_ERROR([Can't find the itcl_mkindex.tcl script])
-fi
-if test x"${ac_cv_c_itclmkidx}" != x ; then
-    no_itcl=""
-    AC_MSG_RESULT(${ac_cv_c_itclmkidx})
-    ITCLMKIDX="${ac_cv_c_itclmkidx}"
-else
-   AC_MSG_RESULT(none)
-fi
-AC_SUBST(ITCLMKIDX)
-])
-
-dnl ====================================================================
-dnl Ok, lets find the tix source trees so we can use the headers
-dnl the alternative search directory is involked by --with-tixinclude
-AC_DEFUN([CYG_AC_PATH_TIX], [
-    CYG_AC_PATH_TIXH
-    CYG_AC_PATH_TIXLIB
-])
-AC_DEFUN([CYG_AC_PATH_TIXH], [
-dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."
-no_tix=true
-AC_MSG_CHECKING(for Tix headers in the source tree)
-AC_ARG_WITH(tixinclude, [  --with-tixinclude       directory where tix headers are], with_tixinclude=${withval})
-AC_CACHE_VAL(ac_cv_c_tixh,[
-dnl first check to see if --with-tixinclude was specified
-if test x"${with_tixinclude}" != x ; then
-  if test -f ${with_tixinclude}/tix.h ; then
-    ac_cv_c_tixh=`(cd ${with_tixinclude}; ${PWDCMD-pwd})`
-  elif test -f ${with_tixinclude}/generic/tix.h ; then
-    ac_cv_c_tixh=`(cd ${with_tixinclude}/generic; ${PWDCMD-pwd})`
-  else
-    AC_MSG_ERROR([${with_tixinclude} directory doesn't contain headers])
-  fi
-fi
-
-dnl next check if it came with Tix configuration file
-if test x"${ac_cv_c_tixconfig}" != x ; then
-  for i in $dirlist; do
-    if test -f $ac_cv_c_tixconfig/$i/generic/tix.h ; then
-      ac_cv_c_tixh=`(cd $ac_cv_c_tixconfig/$i/generic; ${PWDCMD-pwd})`
-      break
-    fi
-  done
-fi
-
-dnl next check in private source directory
-dnl since ls returns lowest version numbers first, reverse its output
-if test x"${ac_cv_c_tixh}" = x ; then
-    dnl find the top level Tix source directory
-    for i in $dirlist; do
-        if test -n "`ls -dr $srcdir/$i/tix* 2>/dev/null`" ; then
-           tixpath=$srcdir/$i
-           break
-       fi
-    done
-
-    dnl find the exact Tix source dir. We do it this way, cause there
-    dnl might be multiple version of Tix, and we want the most recent one.
-    for i in `ls -dr $tixpath/tix* 2>/dev/null ` ; do
-        if test -f $i/generic/tix.h ; then
-          ac_cv_c_tixh=`(cd $i/generic; ${PWDCMD-pwd})`
-          break
-        fi
-    done
-fi
-
-dnl see if one is installed
-if test x"${ac_cv_c_tixh}" = x ; then
-    AC_MSG_RESULT(none)
-    dnl Get the path to the compiler
-
-   dnl Get the path to the compiler. We do it this way instead of using
-    dnl AC_CHECK_HEADER, cause this doesn't depend in having X configured.
-    ccpath=`which ${CC}  | sed -e 's:/bin/.*::'`/include
-    if test -f $ccpath/tix.h; then
-       ac_cv_c_tixh=installed
-    fi
-else
-   AC_MSG_RESULT(${ac_cv_c_tixh})
-fi
-])
-if test x"${ac_cv_c_tixh}" = x ; then
-    AC_MSG_ERROR([Can't find any Tix headers])
-fi
-if test x"${ac_cv_c_tixh}" != x ; then
-    no_tix=""
-    AC_MSG_RESULT(${ac_cv_c_tixh})
-    if test x"${ac_cv_c_tixh}" != x"installed" ; then
-        TIXHDIR="-I${ac_cv_c_tixh}"
-    fi
-fi
-
-AC_SUBST(TIXHDIR)
-])
-
-AC_DEFUN([CYG_AC_PATH_TIXCONFIG], [
-#
-# Ok, lets find the tix configuration
-# First, look for one uninstalled.  
-# the alternative search directory is invoked by --with-tixconfig
-#
-
-if test x"${no_tix}" = x ; then
-  # we reset no_tix in case something fails here
-  no_tix=true
-  AC_ARG_WITH(tixconfig, [  --with-tixconfig           directory containing tix configuration (tixConfig.sh)],
-         with_tixconfig=${withval})
-  AC_MSG_CHECKING([for Tix configuration])
-  AC_CACHE_VAL(ac_cv_c_tixconfig,[
-
-  # First check to see if --with-tixconfig was specified.
-  if test x"${with_tixconfig}" != x ; then
-    if test -f "${with_tixconfig}/tixConfig.sh" ; then
-      ac_cv_c_tixconfig=`(cd ${with_tixconfig}; ${PWDCMD-pwd})`
-    else
-      AC_MSG_ERROR([${with_tixconfig} directory doesn't contain tixConfig.sh])
-    fi
-  fi
-
-  # then check for a private Tix library
-  if test x"${ac_cv_c_tixconfig}" = x ; then
-    for i in \
-               ../tix \
-               `ls -dr ../tix[[4]]* 2>/dev/null` \
-               ../../tix \
-               `ls -dr ../../tix[[4]]* 2>/dev/null` \
-               ../../../tix \
-               `ls -dr ../../../tix[[4]]* 2>/dev/null` ; do
-      if test -f "$i/tixConfig.sh" ; then
-        ac_cv_c_tixconfig=`(cd $i; ${PWDCMD-pwd})`
-       break
-      fi
-    done
-  fi
-  # check in a few common install locations
-  if test x"${ac_cv_c_tixconfig}" = x ; then
-    for i in `ls -d ${prefix}/lib /usr/local/lib 2>/dev/null` ; do
-      if test -f "$i/tixConfig.sh" ; then
-        ac_cv_c_tkconfig=`(cd $i; ${PWDCMD-pwd})`
-       break
-      fi
-    done
-  fi
-  # check in a few other private locations
-  if test x"${ac_cv_c_tixconfig}" = x ; then
-    for i in \
-               ${srcdir}/../tix \
-               `ls -dr ${srcdir}/../tix[[4-9]]* 2>/dev/null` ; do
-      if test -f "$i/tixConfig.sh" ; then
-        ac_cv_c_tixconfig=`(cd $i; ${PWDCMD-pwd})`
-       break
-      fi
-    done
-  fi
-  ])
-  if test x"${ac_cv_c_tixconfig}" = x ; then
-    TIXCONFIG="# no Tix configs found"
-    AC_MSG_WARN(Can't find Tix configuration definitions)
-  else
-    no_tix=
-    TIXCONFIG=${ac_cv_c_tixconfig}/tixConfig.sh
-    AC_MSG_RESULT(found $TIXCONFIG)
-  fi
-fi
-
-])
-
-# Defined as a separate macro so we don't have to cache the values
-# from PATH_TIXCONFIG (because this can also be cached).
-AC_DEFUN([CYG_AC_LOAD_TIXCONFIG], [
-    if test -f "$TIXCONFIG" ; then
-      . $TIXCONFIG
-    fi
-
-    AC_SUBST(TIX_BUILD_LIB_SPEC)
-    AC_SUBST(TIX_LIB_FULL_PATH)
-])
-
-AC_DEFUN([CYG_AC_PATH_ITCLCONFIG], [
-#
-# Ok, lets find the itcl configuration
-# First, look for one uninstalled.  
-# the alternative search directory is invoked by --with-itclconfig
-#
-
-if test x"${no_itcl}" = x ; then
-  # we reset no_itcl in case something fails here
-  no_itcl=true
-  AC_ARG_WITH(itclconfig, [  --with-itclconfig           directory containing itcl configuration (itclConfig.sh)],
-         with_itclconfig=${withval})
-  AC_MSG_CHECKING([for Itcl configuration])
-  AC_CACHE_VAL(ac_cv_c_itclconfig,[
-
-  # First check to see if --with-itclconfig was specified.
-  if test x"${with_itclconfig}" != x ; then
-    if test -f "${with_itclconfig}/itclConfig.sh" ; then
-      ac_cv_c_itclconfig=`(cd ${with_itclconfig}; ${PWDCMD-pwd})`
-    else
-      AC_MSG_ERROR([${with_itclconfig} directory doesn't contain itclConfig.sh])
-    fi
-  fi
-
-  # then check for a private itcl library
-  if test x"${ac_cv_c_itclconfig}" = x ; then
-    for i in \
-               ../itcl/itcl \
-               `ls -dr ../itcl/itcl[[3]]* 2>/dev/null` \
-               ../../itcl/itcl \
-               `ls -dr ../../itcl/itcl[[3]]* 2>/dev/null` \
-               ../../../itcl/itcl \
-               `ls -dr ../../../itcl/itcl[[3]]* 2>/dev/null` ; do
-      if test -f "$i/itclConfig.sh" ; then
-        ac_cv_c_itclconfig=`(cd $i; ${PWDCMD-pwd})`
-       break
-      fi
-    done
-  fi
-  # check in a few common install locations
-  if test x"${ac_cv_c_itclconfig}" = x ; then
-    for i in `ls -d ${prefix}/lib /usr/local/lib 2>/dev/null` ; do
-      if test -f "$i/itclConfig.sh" ; then
-        ac_cv_c_itclconfig=`(cd $i; ${PWDCMD-pwd})`
-       break
-      fi
-    done
-  fi
-  # check in a few other private locations
-  if test x"${ac_cv_c_itclconfig}" = x ; then
-    for i in \
-               ${srcdir}/../itcl/itcl \
-               `ls -dr ${srcdir}/../itcl/itcl[[3]]* 2>/dev/null` ; do
-      if test -f "$i/itcl/itclConfig.sh" ; then
-        ac_cv_c_itclconfig=`(cd $i; ${PWDCMD-pwd})`
-       break
-      fi
-    done
-  fi
-  ])
-  if test x"${ac_cv_c_itclconfig}" = x ; then
-    ITCLCONFIG="# no itcl configs found"
-    AC_MSG_WARN(Can't find itcl configuration definitions)
-  else
-    no_itcl=
-    ITCLCONFIG=${ac_cv_c_itclconfig}/itclConfig.sh
-    AC_MSG_RESULT(found $ITCLCONFIG)
-  fi
-fi
-
-])
-
-# Defined as a separate macro so we don't have to cache the values
-# from PATH_ITCLCONFIG (because this can also be cached).
-AC_DEFUN([CYG_AC_LOAD_ITCLCONFIG], [
-    if test -f "$ITCLCONFIG" ; then
-      . $ITCLCONFIG
-    fi
-
-    AC_SUBST(ITCL_BUILD_LIB_SPEC)
-    AC_SUBST(ITCL_SH)
-    AC_SUBST(ITCL_LIB_FILE)
-    AC_SUBST(ITCL_LIB_FULL_PATH)
-
-])
-
-
-AC_DEFUN([CYG_AC_PATH_ITKCONFIG], [
-#
-# Ok, lets find the itk configuration
-# First, look for one uninstalled.  
-# the alternative search directory is invoked by --with-itkconfig
-#
-
-if test x"${no_itk}" = x ; then
-  # we reset no_itk in case something fails here
-  no_itk=true
-  AC_ARG_WITH(itkconfig, [  --with-itkconfig           directory containing itk configuration (itkConfig.sh)],
-         with_itkconfig=${withval})
-  AC_MSG_CHECKING([for Itk configuration])
-  AC_CACHE_VAL(ac_cv_c_itkconfig,[
-
-  # First check to see if --with-itkconfig was specified.
-  if test x"${with_itkconfig}" != x ; then
-    if test -f "${with_itkconfig}/itkConfig.sh" ; then
-      ac_cv_c_itkconfig=`(cd ${with_itkconfig}; ${PWDCMD-pwd})`
-    else
-      AC_MSG_ERROR([${with_itkconfig} directory doesn't contain itkConfig.sh])
-    fi
-  fi
-
-  # then check for a private itk library
-  if test x"${ac_cv_c_itkconfig}" = x ; then
-    for i in \
-               ../itcl/itk \
-               `ls -dr ../itcl/itk[[3]]* 2>/dev/null` \
-               ../../itcl/itk \
-               `ls -dr ../../itcl/itk[[3]]* 2>/dev/null` \
-               ../../../itcl/itk \
-               `ls -dr ../../../itcl/itk[[3]]* 2>/dev/null` ; do
-      if test -f "$i/itkConfig.sh" ; then
-        ac_cv_c_itkconfig=`(cd $i; ${PWDCMD-pwd})`
-       break
-      fi
-    done
-  fi
-  # check in a few common install locations
-  if test x"${ac_cv_c_itkconfig}" = x ; then
-    for i in `ls -d ${prefix}/lib /usr/local/lib 2>/dev/null` ; do
-      if test -f "$i/itcl/itkConfig.sh" ; then
-        ac_cv_c_itkconfig=`(cd $i; ${PWDCMD-pwd})`
-       break
-      fi
-    done
-  fi
-  # check in a few other private locations
-  if test x"${ac_cv_c_itkconfig}" = x ; then
-    for i in \
-               ${srcdir}/../itcl/itk \
-               `ls -dr ${srcdir}/../itcl/itk[[3]]* 2>/dev/null` ; do
-      if test -f "$i/itkConfig.sh" ; then
-        ac_cv_c_itkconfig=`(cd $i; ${PWDCMD-pwd})`
-       break
-      fi
-    done
-  fi
-  ])
-  if test x"${ac_cv_c_itkconfig}" = x ; then
-    ITCLCONFIG="# no itk configs found"
-    AC_MSG_WARN(Can't find itk configuration definitions)
-  else
-    no_itk=
-    ITKCONFIG=${ac_cv_c_itkconfig}/itkConfig.sh
-    AC_MSG_RESULT(found $ITKCONFIG)
-  fi
-fi
-
-])
-
-# Defined as a separate macro so we don't have to cache the values
-# from PATH_ITKCONFIG (because this can also be cached).
-AC_DEFUN([CYG_AC_LOAD_ITKCONFIG], [
-    if test -f "$ITKCONFIG" ; then
-      . $ITKCONFIG
-    fi
-
-    AC_SUBST(ITK_BUILD_LIB_SPEC)
-    AC_SUBST(ITK_LIB_FILE)
-    AC_SUBST(ITK_LIB_FULL_PATH)
-])
-
-
-dnl ====================================================================
-dnl Ok, lets find the libgui source trees so we can use the headers
-dnl the alternative search directory is involked by --with-libguiinclude
-AC_DEFUN([CYG_AC_PATH_LIBGUI], [
-    CYG_AC_PATH_LIBGUIH
-    CYG_AC_PATH_LIBGUILIB
-])
-AC_DEFUN([CYG_AC_PATH_LIBGUIH], [
-dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../..../../../../../../../../../../.."
-no_libgui=true
-AC_MSG_CHECKING(for Libgui headers in the source tree)
-AC_ARG_WITH(libguiinclude, [  --with-libguiinclude       directory where libgui headers are], with_libguiinclude=${withval})
-AC_CACHE_VAL(ac_cv_c_libguih,[
-dnl first check to see if --with-libguiinclude was specified
-if test x"${with_libguiinclude}" != x ; then
-  if test -f ${with_libguiinclude}/guitcl.h ; then
-    ac_cv_c_libguih=`(cd ${with_libguiinclude}; ${PWDCMD-pwd})`
-  elif test -f ${with_libguiinclude}/src/guitcl.h ; then
-    ac_cv_c_libguih=`(cd ${with_libguiinclude}/src; ${PWDCMD-pwd})`
-  else
-    AC_MSG_ERROR([${with_libguiinclude} directory doesn't contain headers])
-  fi
-fi
-
-dnl next check if it came with Libgui configuration file
-if test x"${ac_cv_c_libguiconfig}" != x ; then
-  for i in $dirlist; do
-    if test -f $ac_cv_c_libguiconfig/$i/src/guitcl.h ; then
-      ac_cv_c_libguih=`(cd $ac_cv_c_libguiconfig/$i/src; ${PWDCMD-pwd})`
-      break
-    fi
-  done
-fi
-
-dnl next check in private source directory
-dnl since ls returns lowest version numbers first, reverse its output
-if test x"${ac_cv_c_libguih}" = x ; then
-    dnl find the top level Libgui source directory
-    for i in $dirlist; do
-        if test -n "`ls -dr $srcdir/$i/libgui* 2>/dev/null`" ; then
-           libguipath=$srcdir/$i
-           break
-       fi
-    done
-
-    dnl find the exact Libgui source dir. We do it this way, cause there
-    dnl might be multiple version of Libgui, and we want the most recent one.
-    for i in `ls -dr $libguipath/libgui* 2>/dev/null ` ; do
-        if test -f $i/src/guitcl.h ; then
-          ac_cv_c_libguih=`(cd $i/src; ${PWDCMD-pwd})`
-          break
-        fi
-    done
-fi
-
-dnl see if one is installed
-if test x"${ac_cv_c_libguih}" = x ; then
-   AC_MSG_RESULT(none)
-   AC_CHECK_HEADER(guitcl.h, ac_cv_c_libguih=installed, ac_cv_c_libguih="")
-fi
-])
-LIBGUIHDIR=""
-if test x"${ac_cv_c_libguih}" = x ; then
-    AC_MSG_WARN([Can't find any Libgui headers])
-fi
-if test x"${ac_cv_c_libguih}" != x ; then
-    no_libgui=""
-    if test x"${ac_cv_c_libguih}" != x"installed" ; then
-        LIBGUIHDIR="-I${ac_cv_c_libguih}"
-    fi
-fi
-AC_MSG_RESULT(${ac_cv_c_libguih})
-AC_SUBST(LIBGUIHDIR)
-])
-
-dnl ====================================================================
-dnl find the GUI library
-AC_DEFUN([CYG_AC_PATH_LIBGUILIB], [
-AC_MSG_CHECKING(for GUI library  in the build tree)
-dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../../../../../../../.."
-dnl look for the library
-AC_MSG_CHECKING(for GUI library)
-AC_CACHE_VAL(ac_cv_c_libguilib,[
-if test x"${ac_cv_c_libguilib}" = x ; then
-    for i in $dirlist; do
-      if test -f "$i/libgui/src/Makefile" ; then
-        ac_cv_c_libguilib=`(cd $i/libgui/src; ${PWDCMD-pwd})`
-        break
-      fi
-    done
-fi
-]) 
-if test x"${ac_cv_c_libguilib}" != x ; then
-     GUILIB="${GUILIB} -L${ac_cv_c_libguilib}"
-     LIBGUILIB="-lgui"
-     AC_MSG_RESULT(${ac_cv_c_libguilib})
-else
-     AC_MSG_RESULT(none)
-fi
-
-AC_SUBST(GUILIB)
-AC_SUBST(LIBGUILIB)
-])
diff --git a/config/tcl.m4 b/config/tcl.m4
new file mode 100644 (file)
index 0000000..51809fd
--- /dev/null
@@ -0,0 +1,3240 @@
+#------------------------------------------------------------------------
+# SC_PATH_TCLCONFIG --
+#
+#      Locate the tclConfig.sh file and perform a sanity check on
+#      the Tcl compile flags
+#
+# Arguments:
+#      none
+#
+# Results:
+#
+#      Adds the following arguments to configure:
+#              --with-tcl=...
+#
+#      Defines the following vars:
+#              TCL_BIN_DIR     Full path to the directory containing
+#                              the tclConfig.sh file
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_PATH_TCLCONFIG], [
+    #
+    # Ok, lets find the tcl configuration
+    # First, look for one uninstalled.
+    # the alternative search directory is invoked by --with-tcl
+    #
+
+    if test x"${no_tcl}" = x ; then
+       # we reset no_tcl in case something fails here
+       no_tcl=true
+       AC_ARG_WITH(tcl, [  --with-tcl              directory containing tcl configuration (tclConfig.sh)], with_tclconfig=${withval})
+       AC_MSG_CHECKING([for Tcl configuration])
+       AC_CACHE_VAL(ac_cv_c_tclconfig,[
+
+           # First check to see if --with-tcl was specified.
+           if test x"${with_tclconfig}" != x ; then
+               if test -f "${with_tclconfig}/tclConfig.sh" ; then
+                   ac_cv_c_tclconfig=`(cd ${with_tclconfig}; pwd)`
+               else
+                   AC_MSG_ERROR([${with_tclconfig} directory doesn't contain tclConfig.sh])
+               fi
+           fi
+
+           # then check for a private Tcl installation
+           if test x"${ac_cv_c_tclconfig}" = x ; then
+               for i in \
+                       ../tcl \
+                       `ls -dr ../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+                       `ls -dr ../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+                       `ls -dr ../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+                       ../../tcl \
+                       `ls -dr ../../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+                       `ls -dr ../../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+                       `ls -dr ../../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+                       ../../../tcl \
+                       `ls -dr ../../../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+                       `ls -dr ../../../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+                       `ls -dr ../../../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
+                   if test -f "$i/unix/tclConfig.sh" ; then
+                       ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
+                       break
+                   fi
+               done
+           fi
+
+           # on Darwin, check in Framework installation locations
+           if test "`uname -s`" = "Darwin" -a x"${ac_cv_c_tclconfig}" = x ; then
+               for i in `ls -d ~/Library/Frameworks 2>/dev/null` \
+                       `ls -d /Library/Frameworks 2>/dev/null` \
+                       `ls -d /Network/Library/Frameworks 2>/dev/null` \
+                       `ls -d /System/Library/Frameworks 2>/dev/null` \
+                       ; do
+                   if test -f "$i/Tcl.framework/tclConfig.sh" ; then
+                       ac_cv_c_tclconfig=`(cd $i/Tcl.framework; pwd)`
+                       break
+                   fi
+               done
+           fi
+
+           # check in a few common install locations
+           if test x"${ac_cv_c_tclconfig}" = x ; then
+               for i in `ls -d ${libdir} 2>/dev/null` \
+                       `ls -d ${exec_prefix}/lib 2>/dev/null` \
+                       `ls -d ${prefix}/lib 2>/dev/null` \
+                       `ls -d /usr/local/lib 2>/dev/null` \
+                       `ls -d /usr/contrib/lib 2>/dev/null` \
+                       `ls -d /usr/lib 2>/dev/null` \
+                       ; do
+                   if test -f "$i/tclConfig.sh" ; then
+                       ac_cv_c_tclconfig=`(cd $i; pwd)`
+                       break
+                   fi
+               done
+           fi
+
+           # check in a few other private locations
+           if test x"${ac_cv_c_tclconfig}" = x ; then
+               for i in \
+                       ${srcdir}/../tcl \
+                       `ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+                       `ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+                       `ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
+                   if test -f "$i/unix/tclConfig.sh" ; then
+                   ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
+                   break
+               fi
+               done
+           fi
+       ])
+
+       if test x"${ac_cv_c_tclconfig}" = x ; then
+           TCL_BIN_DIR="# no Tcl configs found"
+           AC_MSG_WARN([Can't find Tcl configuration definitions])
+           exit 0
+       else
+           no_tcl=
+           TCL_BIN_DIR=${ac_cv_c_tclconfig}
+           AC_MSG_RESULT([found ${TCL_BIN_DIR}/tclConfig.sh])
+       fi
+    fi
+])
+
+#------------------------------------------------------------------------
+# SC_PATH_TKCONFIG --
+#
+#      Locate the tkConfig.sh file
+#
+# Arguments:
+#      none
+#
+# Results:
+#
+#      Adds the following arguments to configure:
+#              --with-tk=...
+#
+#      Defines the following vars:
+#              TK_BIN_DIR      Full path to the directory containing
+#                              the tkConfig.sh file
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_PATH_TKCONFIG], [
+    #
+    # Ok, lets find the tk configuration
+    # First, look for one uninstalled.
+    # the alternative search directory is invoked by --with-tk
+    #
+
+    if test x"${no_tk}" = x ; then
+       # we reset no_tk in case something fails here
+       no_tk=true
+       AC_ARG_WITH(tk, [  --with-tk               directory containing tk configuration (tkConfig.sh)], with_tkconfig=${withval})
+       AC_MSG_CHECKING([for Tk configuration])
+       AC_CACHE_VAL(ac_cv_c_tkconfig,[
+
+           # First check to see if --with-tkconfig was specified.
+           if test x"${with_tkconfig}" != x ; then
+               if test -f "${with_tkconfig}/tkConfig.sh" ; then
+                   ac_cv_c_tkconfig=`(cd ${with_tkconfig}; pwd)`
+               else
+                   AC_MSG_ERROR([${with_tkconfig} directory doesn't contain tkConfig.sh])
+               fi
+           fi
+
+           # then check for a private Tk library
+           if test x"${ac_cv_c_tkconfig}" = x ; then
+               for i in \
+                       ../tk \
+                       `ls -dr ../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+                       `ls -dr ../tk[[8-9]].[[0-9]] 2>/dev/null` \
+                       `ls -dr ../tk[[8-9]].[[0-9]]* 2>/dev/null` \
+                       ../../tk \
+                       `ls -dr ../../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+                       `ls -dr ../../tk[[8-9]].[[0-9]] 2>/dev/null` \
+                       `ls -dr ../../tk[[8-9]].[[0-9]]* 2>/dev/null` \
+                       ../../../tk \
+                       `ls -dr ../../../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+                       `ls -dr ../../../tk[[8-9]].[[0-9]] 2>/dev/null` \
+                       `ls -dr ../../../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
+                   if test -f "$i/unix/tkConfig.sh" ; then
+                       ac_cv_c_tkconfig=`(cd $i/unix; pwd)`
+                       break
+                   fi
+               done
+           fi
+
+           # on Darwin, check in Framework installation locations
+           if test "`uname -s`" = "Darwin" -a x"${ac_cv_c_tkconfig}" = x ; then
+               for i in `ls -d ~/Library/Frameworks 2>/dev/null` \
+                       `ls -d /Library/Frameworks 2>/dev/null` \
+                       `ls -d /Network/Library/Frameworks 2>/dev/null` \
+                       `ls -d /System/Library/Frameworks 2>/dev/null` \
+                       ; do
+                   if test -f "$i/Tk.framework/tkConfig.sh" ; then
+                       ac_cv_c_tkconfig=`(cd $i/Tk.framework; pwd)`
+                       break
+                   fi
+               done
+           fi
+
+           # check in a few common install locations
+           if test x"${ac_cv_c_tkconfig}" = x ; then
+               for i in `ls -d ${libdir} 2>/dev/null` \
+                       `ls -d ${exec_prefix}/lib 2>/dev/null` \
+                       `ls -d ${prefix}/lib 2>/dev/null` \
+                       `ls -d /usr/local/lib 2>/dev/null` \
+                       `ls -d /usr/contrib/lib 2>/dev/null` \
+                       `ls -d /usr/lib 2>/dev/null` \
+                       ; do
+                   if test -f "$i/tkConfig.sh" ; then
+                       ac_cv_c_tkconfig=`(cd $i; pwd)`
+                       break
+                   fi
+               done
+           fi
+           # check in a few other private locations
+           if test x"${ac_cv_c_tkconfig}" = x ; then
+               for i in \
+                       ${srcdir}/../tk \
+                       `ls -dr ${srcdir}/../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+                       `ls -dr ${srcdir}/../tk[[8-9]].[[0-9]] 2>/dev/null` \
+                       `ls -dr ${srcdir}/../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
+                   if test -f "$i/unix/tkConfig.sh" ; then
+                       ac_cv_c_tkconfig=`(cd $i/unix; pwd)`
+                       break
+                   fi
+               done
+           fi
+       ])
+
+       if test x"${ac_cv_c_tkconfig}" = x ; then
+           TK_BIN_DIR="# no Tk configs found"
+           AC_MSG_WARN([Can't find Tk configuration definitions])
+           exit 0
+       else
+           no_tk=
+           TK_BIN_DIR=${ac_cv_c_tkconfig}
+           AC_MSG_RESULT([found ${TK_BIN_DIR}/tkConfig.sh])
+       fi
+    fi
+])
+
+#------------------------------------------------------------------------
+# SC_LOAD_TCLCONFIG --
+#
+#      Load the tclConfig.sh file
+#
+# Arguments:
+#      
+#      Requires the following vars to be set:
+#              TCL_BIN_DIR
+#
+# Results:
+#
+#      Subst the following vars:
+#              TCL_BIN_DIR
+#              TCL_SRC_DIR
+#              TCL_LIB_FILE
+#
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_LOAD_TCLCONFIG], [
+    AC_MSG_CHECKING([for existence of ${TCL_BIN_DIR}/tclConfig.sh])
+
+    if test -f "${TCL_BIN_DIR}/tclConfig.sh" ; then
+        AC_MSG_RESULT([loading])
+       . ${TCL_BIN_DIR}/tclConfig.sh
+    else
+        AC_MSG_RESULT([could not find ${TCL_BIN_DIR}/tclConfig.sh])
+    fi
+
+    # eval is required to do the TCL_DBGX substitution
+    eval "TCL_LIB_FILE=\"${TCL_LIB_FILE}\""
+    eval "TCL_STUB_LIB_FILE=\"${TCL_STUB_LIB_FILE}\""
+
+    # If the TCL_BIN_DIR is the build directory (not the install directory),
+    # then set the common variable name to the value of the build variables.
+    # For example, the variable TCL_LIB_SPEC will be set to the value
+    # of TCL_BUILD_LIB_SPEC. An extension should make use of TCL_LIB_SPEC
+    # instead of TCL_BUILD_LIB_SPEC since it will work with both an
+    # installed and uninstalled version of Tcl.
+    if test -f ${TCL_BIN_DIR}/Makefile ; then
+        TCL_LIB_SPEC=${TCL_BUILD_LIB_SPEC}
+        TCL_STUB_LIB_SPEC=${TCL_BUILD_STUB_LIB_SPEC}
+        TCL_STUB_LIB_PATH=${TCL_BUILD_STUB_LIB_PATH}
+    elif test "`uname -s`" = "Darwin"; then
+       # If Tcl was built as a framework, attempt to use the libraries
+       # from the framework at the given location so that linking works
+       # against Tcl.framework installed in an arbitary location.
+       case ${TCL_DEFS} in
+           *TCL_FRAMEWORK*)
+               if test -f ${TCL_BIN_DIR}/${TCL_LIB_FILE}; then
+                   for i in "`cd ${TCL_BIN_DIR}; pwd`" \
+                            "`cd ${TCL_BIN_DIR}/../..; pwd`"; do
+                       if test "`basename "$i"`" = "${TCL_LIB_FILE}.framework"; then
+                           TCL_LIB_SPEC="-F`dirname "$i"` -framework ${TCL_LIB_FILE}"
+                           break
+                       fi
+                   done
+               fi
+               if test -f ${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}; then
+                   TCL_STUB_LIB_SPEC="-L${TCL_BIN_DIR} ${TCL_STUB_LIB_FLAG}"
+                   TCL_STUB_LIB_PATH="${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}"
+               fi
+               ;;
+       esac
+    fi
+
+    # eval is required to do the TCL_DBGX substitution
+    eval "TCL_LIB_FLAG=\"${TCL_LIB_FLAG}\""
+    eval "TCL_LIB_SPEC=\"${TCL_LIB_SPEC}\""
+    eval "TCL_STUB_LIB_FLAG=\"${TCL_STUB_LIB_FLAG}\""
+    eval "TCL_STUB_LIB_SPEC=\"${TCL_STUB_LIB_SPEC}\""
+
+    AC_SUBST(TCL_VERSION)
+    AC_SUBST(TCL_PATCH_LEVEL)
+    AC_SUBST(TCL_BIN_DIR)
+    AC_SUBST(TCL_SRC_DIR)
+
+    AC_SUBST(TCL_LIB_FILE)
+    AC_SUBST(TCL_LIB_FLAG)
+    AC_SUBST(TCL_LIB_SPEC)
+
+    AC_SUBST(TCL_STUB_LIB_FILE)
+    AC_SUBST(TCL_STUB_LIB_FLAG)
+    AC_SUBST(TCL_STUB_LIB_SPEC)
+])
+
+#------------------------------------------------------------------------
+# SC_LOAD_TKCONFIG --
+#
+#      Load the tkConfig.sh file
+#
+# Arguments:
+#      
+#      Requires the following vars to be set:
+#              TK_BIN_DIR
+#
+# Results:
+#
+#      Sets the following vars that should be in tkConfig.sh:
+#              TK_BIN_DIR
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_LOAD_TKCONFIG], [
+    AC_MSG_CHECKING([for existence of ${TK_BIN_DIR}/tkConfig.sh])
+
+    if test -f "${TK_BIN_DIR}/tkConfig.sh" ; then
+        AC_MSG_RESULT([loading])
+       . ${TK_BIN_DIR}/tkConfig.sh
+    else
+        AC_MSG_RESULT([could not find ${TK_BIN_DIR}/tkConfig.sh])
+    fi
+
+    # eval is required to do the TK_DBGX substitution
+    eval "TK_LIB_FILE=\"${TK_LIB_FILE}\""
+    eval "TK_STUB_LIB_FILE=\"${TK_STUB_LIB_FILE}\""
+
+    # If the TK_BIN_DIR is the build directory (not the install directory),
+    # then set the common variable name to the value of the build variables.
+    # For example, the variable TK_LIB_SPEC will be set to the value
+    # of TK_BUILD_LIB_SPEC. An extension should make use of TK_LIB_SPEC
+    # instead of TK_BUILD_LIB_SPEC since it will work with both an
+    # installed and uninstalled version of Tcl.
+    if test -f ${TK_BIN_DIR}/Makefile ; then
+        TK_LIB_SPEC=${TK_BUILD_LIB_SPEC}
+        TK_STUB_LIB_SPEC=${TK_BUILD_STUB_LIB_SPEC}
+        TK_STUB_LIB_PATH=${TK_BUILD_STUB_LIB_PATH}
+    elif test "`uname -s`" = "Darwin"; then
+       # If Tk was built as a framework, attempt to use the libraries
+       # from the framework at the given location so that linking works
+       # against Tk.framework installed in an arbitary location.
+       case ${TK_DEFS} in
+           *TK_FRAMEWORK*)
+               if test -f ${TK_BIN_DIR}/${TK_LIB_FILE}; then
+                   for i in "`cd ${TK_BIN_DIR}; pwd`" \
+                            "`cd ${TK_BIN_DIR}/../..; pwd`"; do
+                       if test "`basename "$i"`" = "${TK_LIB_FILE}.framework"; then
+                           TK_LIB_SPEC="-F`dirname "$i"` -framework ${TK_LIB_FILE}"
+                           break
+                       fi
+                   done
+               fi
+               if test -f ${TK_BIN_DIR}/${TK_STUB_LIB_FILE}; then
+                   TK_STUB_LIB_SPEC="-L${TK_BIN_DIR} ${TK_STUB_LIB_FLAG}"
+                   TK_STUB_LIB_PATH="${TK_BIN_DIR}/${TK_STUB_LIB_FILE}"
+               fi
+               ;;
+       esac
+    fi
+
+    # eval is required to do the TK_DBGX substitution
+    eval "TK_LIB_FLAG=\"${TK_LIB_FLAG}\""
+    eval "TK_LIB_SPEC=\"${TK_LIB_SPEC}\""
+    eval "TK_STUB_LIB_FLAG=\"${TK_STUB_LIB_FLAG}\""
+    eval "TK_STUB_LIB_SPEC=\"${TK_STUB_LIB_SPEC}\""
+
+    AC_SUBST(TK_VERSION)
+    AC_SUBST(TK_BIN_DIR)
+    AC_SUBST(TK_SRC_DIR)
+
+    AC_SUBST(TK_LIB_FILE)
+    AC_SUBST(TK_LIB_FLAG)
+    AC_SUBST(TK_LIB_SPEC)
+
+    AC_SUBST(TK_STUB_LIB_FILE)
+    AC_SUBST(TK_STUB_LIB_FLAG)
+    AC_SUBST(TK_STUB_LIB_SPEC)
+])
+
+#------------------------------------------------------------------------
+# SC_PROG_TCLSH
+#      Locate a tclsh shell installed on the system path. This macro
+#      will only find a Tcl shell that already exists on the system.
+#      It will not find a Tcl shell in the Tcl build directory or
+#      a Tcl shell that has been installed from the Tcl build directory.
+#      If a Tcl shell can't be located on the PATH, then TCLSH_PROG will
+#      be set to "". Extensions should take care not to create Makefile
+#      rules that are run by default and depend on TCLSH_PROG. An
+#      extension can't assume that an executable Tcl shell exists at
+#      build time.
+#
+# Arguments
+#      none
+#
+# Results
+#      Subst's the following values:
+#              TCLSH_PROG
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_PROG_TCLSH], [
+    AC_MSG_CHECKING([for tclsh])
+    AC_CACHE_VAL(ac_cv_path_tclsh, [
+       search_path=`echo ${PATH} | sed -e 's/:/ /g'`
+       for dir in $search_path ; do
+           for j in `ls -r $dir/tclsh[[8-9]]* 2> /dev/null` \
+                   `ls -r $dir/tclsh* 2> /dev/null` ; do
+               if test x"$ac_cv_path_tclsh" = x ; then
+                   if test -f "$j" ; then
+                       ac_cv_path_tclsh=$j
+                       break
+                   fi
+               fi
+           done
+       done
+    ])
+
+    if test -f "$ac_cv_path_tclsh" ; then
+       TCLSH_PROG="$ac_cv_path_tclsh"
+       AC_MSG_RESULT([$TCLSH_PROG])
+    else
+       # It is not an error if an installed version of Tcl can't be located.
+       TCLSH_PROG=""
+       AC_MSG_RESULT([No tclsh found on PATH])
+    fi
+    AC_SUBST(TCLSH_PROG)
+])
+
+#------------------------------------------------------------------------
+# SC_BUILD_TCLSH
+#      Determine the fully qualified path name of the tclsh executable
+#      in the Tcl build directory. This macro will correctly determine
+#      the name of the tclsh executable even if tclsh has not yet
+#      been built in the build directory. The build tclsh must be used
+#      when running tests from an extension build directory. It is not
+#      correct to use the TCLSH_PROG in cases like this.
+#
+# Arguments
+#      none
+#
+# Results
+#      Subst's the following values:
+#              BUILD_TCLSH
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_BUILD_TCLSH], [
+    AC_MSG_CHECKING([for tclsh in Tcl build directory])
+    BUILD_TCLSH=${TCL_BIN_DIR}/tclsh
+    AC_MSG_RESULT([$BUILD_TCLSH])
+    AC_SUBST(BUILD_TCLSH)
+])
+
+#------------------------------------------------------------------------
+# SC_ENABLE_SHARED --
+#
+#      Allows the building of shared libraries
+#
+# Arguments:
+#      none
+#      
+# Results:
+#
+#      Adds the following arguments to configure:
+#              --enable-shared=yes|no
+#
+#      Defines the following vars:
+#              STATIC_BUILD    Used for building import/export libraries
+#                              on Windows.
+#
+#      Sets the following vars:
+#              SHARED_BUILD    Value of 1 or 0
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_ENABLE_SHARED], [
+    AC_MSG_CHECKING([how to build libraries])
+    AC_ARG_ENABLE(shared,
+       [  --enable-shared         build and link with shared libraries [--enable-shared]],
+       [tcl_ok=$enableval], [tcl_ok=yes])
+
+    if test "${enable_shared+set}" = set; then
+       enableval="$enable_shared"
+       tcl_ok=$enableval
+    else
+       tcl_ok=yes
+    fi
+
+    if test "$tcl_ok" = "yes" ; then
+       AC_MSG_RESULT([shared])
+       SHARED_BUILD=1
+    else
+       AC_MSG_RESULT([static])
+       SHARED_BUILD=0
+       AC_DEFINE(STATIC_BUILD)
+    fi
+])
+
+#------------------------------------------------------------------------
+# SC_ENABLE_FRAMEWORK --
+#
+#      Allows the building of shared libraries into frameworks
+#
+# Arguments:
+#      none
+#      
+# Results:
+#
+#      Adds the following arguments to configure:
+#              --enable-framework=yes|no
+#
+#      Sets the following vars:
+#              FRAMEWORK_BUILD Value of 1 or 0
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_ENABLE_FRAMEWORK], [
+    if test "`uname -s`" = "Darwin" ; then
+       AC_MSG_CHECKING([how to package libraries])
+       AC_ARG_ENABLE(framework,
+           [  --enable-framework      package shared libraries in MacOSX frameworks [--disable-framework]],
+           [enable_framework=$enableval], [enable_framework=no])
+       if test $enable_framework = yes; then
+           if test $SHARED_BUILD = 0; then
+               AC_MSG_WARN([Frameworks can only be built if --enable-shared is yes])
+               enable_framework=no
+           fi
+           if test $tcl_corefoundation = no; then
+               AC_MSG_WARN([Frameworks can only be used when CoreFoundation is available])
+               enable_framework=no
+           fi
+       fi
+       if test $enable_framework = yes; then
+           AC_MSG_RESULT([framework])
+           FRAMEWORK_BUILD=1
+       else
+           if test $SHARED_BUILD = 1; then
+               AC_MSG_RESULT([shared library])
+           else
+               AC_MSG_RESULT([static library])
+           fi
+           FRAMEWORK_BUILD=0
+       fi
+    fi
+])
+
+#------------------------------------------------------------------------
+# SC_ENABLE_THREADS --
+#
+#      Specify if thread support should be enabled.  TCL_THREADS is
+#      checked so that if you are compiling an extension against a
+#      threaded core, your extension must be compiled threaded as well.
+#
+# Arguments:
+#      none
+#      
+# Results:
+#
+#      Adds the following arguments to configure:
+#              --enable-threads
+#
+#      Sets the following vars:
+#              THREADS_LIBS    Thread library(s)
+#
+#      Defines the following vars:
+#              TCL_THREADS
+#              _REENTRANT
+#              _THREAD_SAFE
+#
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_ENABLE_THREADS], [
+    AC_ARG_ENABLE(threads, [  --enable-threads        build with threads],
+       [tcl_ok=$enableval], [tcl_ok=no])
+
+    if test "${TCL_THREADS}" = 1; then
+       tcl_threaded_core=1;
+    fi
+
+    if test "$tcl_ok" = "yes" -o "${TCL_THREADS}" = 1; then
+       TCL_THREADS=1
+       # USE_THREAD_ALLOC tells us to try the special thread-based
+       # allocator that significantly reduces lock contention
+       AC_DEFINE(USE_THREAD_ALLOC)
+       AC_DEFINE(_REENTRANT)
+       if test "`uname -s`" = "SunOS" ; then
+           AC_DEFINE(_POSIX_PTHREAD_SEMANTICS)
+       fi
+       AC_DEFINE(_THREAD_SAFE)
+       AC_CHECK_LIB(pthread,pthread_mutex_init,tcl_ok=yes,tcl_ok=no)
+       if test "$tcl_ok" = "no"; then
+           # Check a little harder for __pthread_mutex_init in the same
+           # library, as some systems hide it there until pthread.h is
+           # defined.  We could alternatively do an AC_TRY_COMPILE with
+           # pthread.h, but that will work with libpthread really doesn't
+           # exist, like AIX 4.2.  [Bug: 4359]
+           AC_CHECK_LIB(pthread, __pthread_mutex_init,
+               tcl_ok=yes, tcl_ok=no)
+       fi
+
+       if test "$tcl_ok" = "yes"; then
+           # The space is needed
+           THREADS_LIBS=" -lpthread"
+       else
+           AC_CHECK_LIB(pthreads, pthread_mutex_init,
+               tcl_ok=yes, tcl_ok=no)
+           if test "$tcl_ok" = "yes"; then
+               # The space is needed
+               THREADS_LIBS=" -lpthreads"
+           else
+               AC_CHECK_LIB(c, pthread_mutex_init,
+                   tcl_ok=yes, tcl_ok=no)
+               if test "$tcl_ok" = "no"; then
+                   AC_CHECK_LIB(c_r, pthread_mutex_init,
+                       tcl_ok=yes, tcl_ok=no)
+                   if test "$tcl_ok" = "yes"; then
+                       # The space is needed
+                       THREADS_LIBS=" -pthread"
+                   else
+                       TCL_THREADS=0
+                       AC_MSG_WARN([Don't know how to find pthread lib on your system - you must disable thread support or edit the LIBS in the Makefile...])
+                   fi
+               fi
+           fi
+       fi
+
+       # Does the pthread-implementation provide
+       # 'pthread_attr_setstacksize' ?
+
+       ac_saved_libs=$LIBS
+       LIBS="$LIBS $THREADS_LIBS"
+       AC_CHECK_FUNCS(pthread_attr_setstacksize)
+       AC_CHECK_FUNCS(pthread_atfork)
+       LIBS=$ac_saved_libs
+    else
+       TCL_THREADS=0
+    fi
+    # Do checking message here to not mess up interleaved configure output
+    AC_MSG_CHECKING([for building with threads])
+    if test "${TCL_THREADS}" = 1; then
+       AC_DEFINE(TCL_THREADS, 1, [Are we building with threads enabled?])
+       if test "${tcl_threaded_core}" = 1; then
+           AC_MSG_RESULT([yes (threaded core)])
+       else
+           AC_MSG_RESULT([yes])
+       fi
+    else
+       AC_MSG_RESULT([no (default)])
+    fi
+
+    AC_SUBST(TCL_THREADS)
+])
+
+#------------------------------------------------------------------------
+# SC_ENABLE_SYMBOLS --
+#
+#      Specify if debugging symbols should be used.
+#      Memory (TCL_MEM_DEBUG) and compile (TCL_COMPILE_DEBUG) debugging
+#      can also be enabled.
+#
+# Arguments:
+#      none
+#      
+#      Requires the following vars to be set in the Makefile:
+#              CFLAGS_DEBUG
+#              CFLAGS_OPTIMIZE
+#              LDFLAGS_DEBUG
+#              LDFLAGS_OPTIMIZE
+#      
+# Results:
+#
+#      Adds the following arguments to configure:
+#              --enable-symbols
+#
+#      Defines the following vars:
+#              CFLAGS_DEFAULT  Sets to $(CFLAGS_DEBUG) if true
+#                              Sets to $(CFLAGS_OPTIMIZE) if false
+#              LDFLAGS_DEFAULT Sets to $(LDFLAGS_DEBUG) if true
+#                              Sets to $(LDFLAGS_OPTIMIZE) if false
+#              DBGX            Debug library extension
+#
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_ENABLE_SYMBOLS], [
+    AC_MSG_CHECKING([for build with symbols])
+    AC_ARG_ENABLE(symbols, [  --enable-symbols        build with debugging symbols [--disable-symbols]],    [tcl_ok=$enableval], [tcl_ok=no])
+# FIXME: Currently, LDFLAGS_DEFAULT is not used, it should work like CFLAGS_DEFAULT.
+    if test "$tcl_ok" = "no"; then
+       CFLAGS_DEFAULT='$(CFLAGS_OPTIMIZE)'
+       LDFLAGS_DEFAULT='$(LDFLAGS_OPTIMIZE)'
+       DBGX=""
+       AC_MSG_RESULT([no])
+    else
+       CFLAGS_DEFAULT='$(CFLAGS_DEBUG)'
+       LDFLAGS_DEFAULT='$(LDFLAGS_DEBUG)'
+       DBGX=g
+       if test "$tcl_ok" = "yes"; then
+           AC_MSG_RESULT([yes (standard debugging)])
+       fi
+    fi
+    AC_SUBST(CFLAGS_DEFAULT)
+    AC_SUBST(LDFLAGS_DEFAULT)
+
+    if test "$tcl_ok" = "mem" -o "$tcl_ok" = "all"; then
+       AC_DEFINE(TCL_MEM_DEBUG)
+    fi
+
+    if test "$tcl_ok" = "compile" -o "$tcl_ok" = "all"; then
+       AC_DEFINE(TCL_COMPILE_DEBUG)
+       AC_DEFINE(TCL_COMPILE_STATS)
+    fi
+
+    if test "$tcl_ok" != "yes" -a "$tcl_ok" != "no"; then
+       if test "$tcl_ok" = "all"; then
+           AC_MSG_RESULT([enabled symbols mem compile debugging])
+       else
+           AC_MSG_RESULT([enabled $tcl_ok debugging])
+       fi
+    fi
+])
+
+#------------------------------------------------------------------------
+# SC_ENABLE_LANGINFO --
+#
+#      Allows use of modern nl_langinfo check for better l10n.
+#      This is only relevant for Unix.
+#
+# Arguments:
+#      none
+#      
+# Results:
+#
+#      Adds the following arguments to configure:
+#              --enable-langinfo=yes|no (default is yes)
+#
+#      Defines the following vars:
+#              HAVE_LANGINFO   Triggers use of nl_langinfo if defined.
+#
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_ENABLE_LANGINFO], [
+    AC_ARG_ENABLE(langinfo,
+       [  --enable-langinfo      use nl_langinfo if possible to determine
+                         encoding at startup, otherwise use old heuristic],
+       [langinfo_ok=$enableval], [langinfo_ok=yes])
+
+    HAVE_LANGINFO=0
+    if test "$langinfo_ok" = "yes"; then
+       AC_CHECK_HEADER(langinfo.h,[langinfo_ok=yes],[langinfo_ok=no])
+    fi
+    AC_MSG_CHECKING([whether to use nl_langinfo])
+    if test "$langinfo_ok" = "yes"; then
+       AC_CACHE_VAL(tcl_cv_langinfo_h, [
+           AC_TRY_COMPILE([#include <langinfo.h>], [nl_langinfo(CODESET);],
+                   [tcl_cv_langinfo_h=yes],[tcl_cv_langinfo_h=no])])
+       AC_MSG_RESULT([$tcl_cv_langinfo_h])
+       if test $tcl_cv_langinfo_h = yes; then
+           AC_DEFINE(HAVE_LANGINFO)
+       fi
+    else 
+       AC_MSG_RESULT([$langinfo_ok])
+    fi
+])
+
+#--------------------------------------------------------------------
+# SC_CONFIG_MANPAGES
+#      
+#      Decide whether to use symlinks for linking the manpages,
+#      whether to compress the manpages after installation, and
+#      whether to add a package name suffix to the installed
+#      manpages to avoidfile name clashes.
+#      If compression is enabled also find out what file name suffix
+#      the given compression program is using.
+#
+# Arguments:
+#      none
+#
+# Results:
+#
+#      Adds the following arguments to configure:
+#              --enable-man-symlinks
+#              --enable-man-compression=PROG
+#              --enable-man-suffix[=STRING]
+#
+#      Defines the following variable:
+#
+#      MAN_FLAGS -     The apropriate flags for installManPage
+#                      according to the user's selection.
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_CONFIG_MANPAGES], [
+    AC_MSG_CHECKING([whether to use symlinks for manpages])
+    AC_ARG_ENABLE(man-symlinks,
+           [  --enable-man-symlinks   use symlinks for the manpages],
+       test "$enableval" != "no" && MAN_FLAGS="$MAN_FLAGS --symlinks",
+       enableval="no")
+    AC_MSG_RESULT([$enableval])
+
+    AC_MSG_CHECKING([whether to compress the manpages])
+    AC_ARG_ENABLE(man-compression,
+           [  --enable-man-compression=PROG
+                     compress the manpages with PROG],
+       [case $enableval in
+           yes) AC_MSG_ERROR([missing argument to --enable-man-compression]);;
+           no)  ;;
+           *)   MAN_FLAGS="$MAN_FLAGS --compress $enableval";;
+       esac],
+       enableval="no")
+    AC_MSG_RESULT([$enableval])
+    if test "$enableval" != "no"; then
+       AC_MSG_CHECKING([for compressed file suffix])
+       touch TeST
+       $enableval TeST
+       Z=`ls TeST* | sed 's/^....//'`
+       rm -f TeST*
+       MAN_FLAGS="$MAN_FLAGS --extension $Z"
+       AC_MSG_RESULT([$Z])
+    fi
+
+    AC_MSG_CHECKING([whether to add a package name suffix for the manpages])
+    AC_ARG_ENABLE(man-suffix,
+           [  --enable-man-suffix=STRING
+                     use STRING as a suffix to manpage file names
+                     (default: $1)],
+       [case $enableval in
+           yes) enableval="$1" MAN_FLAGS="$MAN_FLAGS --suffix $enableval";;
+           no)  ;;
+           *)   MAN_FLAGS="$MAN_FLAGS --suffix $enableval";;
+       esac],
+       enableval="no")
+    AC_MSG_RESULT([$enableval])
+
+    AC_SUBST(MAN_FLAGS)
+])
+
+#--------------------------------------------------------------------
+# SC_CONFIG_SYSTEM
+#
+#      Determine what the system is (some things cannot be easily checked
+#      on a feature-driven basis, alas). This can usually be done via the
+#      "uname" command, but there are a few systems, like Next, where
+#      this doesn't work.
+#
+# Arguments:
+#      none
+#
+# Results:
+#      Defines the following var:
+#
+#      system -        System/platform/version identification code.
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_CONFIG_SYSTEM], [
+    AC_CACHE_CHECK([system version], tcl_cv_sys_version, [
+       if test -f /usr/lib/NextStep/software_version; then
+           tcl_cv_sys_version=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version`
+       else
+           tcl_cv_sys_version=`uname -s`-`uname -r`
+           if test "$?" -ne 0 ; then
+               AC_MSG_WARN([can't find uname command])
+               tcl_cv_sys_version=unknown
+           else
+               # Special check for weird MP-RAS system (uname returns weird
+               # results, and the version is kept in special file).
+
+               if test -r /etc/.relid -a "X`uname -n`" = "X`uname -s`" ; then
+                   tcl_cv_sys_version=MP-RAS-`awk '{print $[3]}' /etc/.relid`
+               fi
+               if test "`uname -s`" = "AIX" ; then
+                   tcl_cv_sys_version=AIX-`uname -v`.`uname -r`
+               fi
+           fi
+       fi
+    ])
+    system=$tcl_cv_sys_version
+])
+
+#--------------------------------------------------------------------
+# SC_CONFIG_CFLAGS
+#
+#      Try to determine the proper flags to pass to the compiler
+#      for building shared libraries and other such nonsense.
+#
+# Arguments:
+#      none
+#
+# Results:
+#
+#      Defines and substitutes the following vars:
+#
+#       DL_OBJS -       Name of the object file that implements dynamic
+#                       loading for Tcl on this system.
+#       DL_LIBS -       Library file(s) to include in tclsh and other base
+#                       applications in order for the "load" command to work.
+#       LDFLAGS -      Flags to pass to the compiler when linking object
+#                       files into an executable application binary such
+#                       as tclsh.
+#       LD_SEARCH_FLAGS-Flags to pass to ld, such as "-R /usr/local/tcl/lib",
+#                       that tell the run-time dynamic linker where to look
+#                       for shared libraries such as libtcl.so.  Depends on
+#                       the variable LIB_RUNTIME_DIR in the Makefile. Could
+#                       be the same as CC_SEARCH_FLAGS if ${CC} is used to link.
+#       CC_SEARCH_FLAGS-Flags to pass to ${CC}, such as "-Wl,-rpath,/usr/local/tcl/lib",
+#                       that tell the run-time dynamic linker where to look
+#                       for shared libraries such as libtcl.so.  Depends on
+#                       the variable LIB_RUNTIME_DIR in the Makefile.
+#       MAKE_LIB -      Command to execute to build the a library;
+#                       differs when building shared or static.
+#       MAKE_STUB_LIB -
+#                       Command to execute to build a stub library.
+#       INSTALL_LIB -   Command to execute to install a library;
+#                       differs when building shared or static.
+#       INSTALL_STUB_LIB -
+#                       Command to execute to install a stub library.
+#       STLIB_LD -      Base command to use for combining object files
+#                       into a static library.
+#       SHLIB_CFLAGS -  Flags to pass to cc when compiling the components
+#                       of a shared library (may request position-independent
+#                       code, among other things).
+#       SHLIB_LD -      Base command to use for combining object files
+#                       into a shared library.
+#       SHLIB_LD_LIBS - Dependent libraries for the linker to scan when
+#                       creating shared libraries.  This symbol typically
+#                       goes at the end of the "ld" commands that build
+#                       shared libraries. The value of the symbol is
+#                       "${LIBS}" if all of the dependent libraries should
+#                       be specified when creating a shared library.  If
+#                       dependent libraries should not be specified (as on
+#                       SunOS 4.x, where they cause the link to fail, or in
+#                       general if Tcl and Tk aren't themselves shared
+#                       libraries), then this symbol has an empty string
+#                       as its value.
+#       SHLIB_SUFFIX -  Suffix to use for the names of dynamically loadable
+#                       extensions.  An empty string means we don't know how
+#                       to use shared libraries on this platform.
+# TCL_SHLIB_LD_EXTRAS - Additional element which are added to SHLIB_LD_LIBS
+#  TK_SHLIB_LD_EXTRAS   for the build of Tcl and Tk, but not recorded in the
+#                       tclConfig.sh, since they are only used for the build
+#                       of Tcl and Tk. 
+#                       Examples: MacOS X records the library version and
+#                       compatibility version in the shared library.  But
+#                       of course the Tcl version of this is only used for Tcl.
+#       LIB_SUFFIX -    Specifies everything that comes after the "libfoo"
+#                       in a static or shared library name, using the $VERSION variable
+#                       to put the version in the right place.  This is used
+#                       by platforms that need non-standard library names.
+#                       Examples:  ${VERSION}.so.1.1 on NetBSD, since it needs
+#                       to have a version after the .so, and ${VERSION}.a
+#                       on AIX, since a shared library needs to have
+#                       a .a extension whereas shared objects for loadable
+#                       extensions have a .so extension.  Defaults to
+#                       ${VERSION}${SHLIB_SUFFIX}.
+#       TCL_NEEDS_EXP_FILE -
+#                       1 means that an export file is needed to link to a
+#                       shared library.
+#       TCL_EXP_FILE -  The name of the installed export / import file which
+#                       should be used to link to the Tcl shared library.
+#                       Empty if Tcl is unshared.
+#       TCL_BUILD_EXP_FILE -
+#                       The name of the built export / import file which
+#                       should be used to link to the Tcl shared library.
+#                       Empty if Tcl is unshared.
+#      CFLAGS_DEBUG -
+#                      Flags used when running the compiler in debug mode
+#      CFLAGS_OPTIMIZE -
+#                      Flags used when running the compiler in optimize mode
+#      CFLAGS -        Additional CFLAGS added as necessary (usually 64-bit)
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_CONFIG_CFLAGS], [
+
+    # Step 0.a: Enable 64 bit support?
+
+    AC_MSG_CHECKING([if 64bit support is requested])
+    AC_ARG_ENABLE(64bit,[  --enable-64bit          enable 64bit support (where applicable)],
+       [do64bit=$enableval], [do64bit=no])
+    AC_MSG_RESULT([$do64bit])
+
+    # Step 0.b: Enable Solaris 64 bit VIS support?
+
+    AC_MSG_CHECKING([if 64bit Sparc VIS support is requested])
+    AC_ARG_ENABLE(64bit-vis,[  --enable-64bit-vis      enable 64bit Sparc VIS support],
+       [do64bitVIS=$enableval], [do64bitVIS=no])
+    AC_MSG_RESULT([$do64bitVIS])
+
+    if test "$do64bitVIS" = "yes"; then
+       # Force 64bit on with VIS
+       do64bit=yes
+    fi
+
+    # Step 1: set the variable "system" to hold the name and version number
+    # for the system.
+
+    SC_CONFIG_SYSTEM
+
+    # Step 2: check for existence of -ldl library.  This is needed because
+    # Linux can use either -ldl or -ldld for dynamic loading.
+
+    AC_CHECK_LIB(dl, dlopen, have_dl=yes, have_dl=no)
+
+    # Require ranlib early so we can override it in special cases below.
+
+    AC_REQUIRE([AC_PROG_RANLIB])
+
+    # Step 3: set configuration options based on system name and version.
+
+    do64bit_ok=no
+    LDFLAGS_ORIG="$LDFLAGS"
+    TCL_EXPORT_FILE_SUFFIX=""
+    UNSHARED_LIB_SUFFIX=""
+    TCL_TRIM_DOTS='`echo ${VERSION} | tr -d .`'
+    ECHO_VERSION='`echo ${VERSION}`'
+    TCL_LIB_VERSIONS_OK=ok
+    CFLAGS_DEBUG=-g
+    CFLAGS_OPTIMIZE=-O
+    if test "$GCC" = "yes" ; then
+       CFLAGS_WARNING="-Wall -Wno-implicit-int -fno-strict-aliasing"
+    else
+       CFLAGS_WARNING=""
+    fi
+    TCL_NEEDS_EXP_FILE=0
+    TCL_BUILD_EXP_FILE=""
+    TCL_EXP_FILE=""
+dnl FIXME: Replace AC_CHECK_PROG with AC_CHECK_TOOL once cross compiling is fixed.
+dnl AC_CHECK_TOOL(AR, ar)
+    AC_CHECK_PROG(AR, ar, ar)
+    if test "${AR}" = "" ; then
+       AC_MSG_ERROR([Required archive tool 'ar' not found on PATH.])
+    fi
+    STLIB_LD='${AR} cr'
+    LD_LIBRARY_PATH_VAR="LD_LIBRARY_PATH"
+    PLAT_OBJS=""
+    PLAT_SRCS=""
+    case $system in
+       AIX-*)
+           if test "${TCL_THREADS}" = "1" -a "$GCC" != "yes" ; then
+               # AIX requires the _r compiler when gcc isn't being used
+               case "${CC}" in
+                   *_r)
+                       # ok ...
+                       ;;
+                   *)
+                       CC=${CC}_r
+                       ;;
+               esac
+               AC_MSG_RESULT([Using $CC for compiling with threads])
+           fi
+           LIBS="$LIBS -lc"
+           SHLIB_CFLAGS=""
+           # Note: need the LIBS below, otherwise Tk won't find Tcl's
+           # symbols when dynamically loaded into tclsh.
+           SHLIB_LD_LIBS='${LIBS}'
+           SHLIB_SUFFIX=".so"
+
+           DL_OBJS="tclLoadDl.o"
+           LD_LIBRARY_PATH_VAR="LIBPATH"
+
+           # Check to enable 64-bit flags for compiler/linker on AIX 4+
+           if test "$do64bit" = "yes" -a "`uname -v`" -gt "3" ; then
+               if test "$GCC" = "yes" ; then
+                   AC_MSG_WARN([64bit mode not supported with GCC on $system])
+               else 
+                   do64bit_ok=yes
+                   CFLAGS="$CFLAGS -q64"
+                   LDFLAGS="$LDFLAGS -q64"
+                   RANLIB="${RANLIB} -X64"
+                   AR="${AR} -X64"
+                   SHLIB_LD_FLAGS="-b64"
+               fi
+           fi
+
+           if test "`uname -m`" = "ia64" ; then
+               # AIX-5 uses ELF style dynamic libraries on IA-64, but not PPC
+               SHLIB_LD="/usr/ccs/bin/ld -G -z text"
+               # AIX-5 has dl* in libc.so
+               DL_LIBS=""
+               if test "$GCC" = "yes" ; then
+                   CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
+               else
+                   CC_SEARCH_FLAGS='-R${LIB_RUNTIME_DIR}'
+               fi
+               LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
+           else
+               if test "$GCC" = "yes" ; then
+                   SHLIB_LD="gcc -shared"
+               else
+                   SHLIB_LD="/bin/ld -bhalt:4 -bM:SRE -bE:lib.exp -H512 -T512 -bnoentry"
+               fi
+               SHLIB_LD="${TCL_SRC_DIR}/unix/ldAix ${SHLIB_LD} ${SHLIB_LD_FLAGS}"
+               DL_LIBS="-ldl"
+               CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
+               LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+               TCL_NEEDS_EXP_FILE=1
+               TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.exp'
+           fi
+
+           # AIX v<=4.1 has some different flags than 4.2+
+           if test "$system" = "AIX-4.1" -o "`uname -v`" -lt "4" ; then
+               LIBOBJS="$LIBOBJS tclLoadAix.o"
+               DL_LIBS="-lld"
+           fi
+
+           # On AIX <=v4 systems, libbsd.a has to be linked in to support
+           # non-blocking file IO.  This library has to be linked in after
+           # the MATH_LIBS or it breaks the pow() function.  The way to
+           # insure proper sequencing, is to add it to the tail of MATH_LIBS.
+           # This library also supplies gettimeofday.
+           #
+           # AIX does not have a timezone field in struct tm. When the AIX
+           # bsd library is used, the timezone global and the gettimeofday
+           # methods are to be avoided for timezone deduction instead, we
+           # deduce the timezone by comparing the localtime result on a
+           # known GMT value.
+
+           AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes, libbsd=no)
+           if test $libbsd = yes; then
+               MATH_LIBS="$MATH_LIBS -lbsd"
+               AC_DEFINE(USE_DELTA_FOR_TZ)
+           fi
+           ;;
+       BeOS*)
+           SHLIB_CFLAGS="-fPIC"
+           SHLIB_LD="${CC} -nostart"
+           SHLIB_LD_LIBS='${LIBS}'
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS="-ldl"
+
+           #-----------------------------------------------------------
+           # Check for inet_ntoa in -lbind, for BeOS (which also needs
+           # -lsocket, even if the network functions are in -lnet which
+           # is always linked to, for compatibility.
+           #-----------------------------------------------------------
+           AC_CHECK_LIB(bind, inet_ntoa, [LIBS="$LIBS -lbind -lsocket"])
+           ;;
+       BSD/OS-2.1*|BSD/OS-3*)
+           SHLIB_CFLAGS=""
+           SHLIB_LD="shlicc -r"
+           SHLIB_LD_LIBS='${LIBS}'
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS="-ldl"
+           CC_SEARCH_FLAGS=""
+           LD_SEARCH_FLAGS=""
+           ;;
+       BSD/OS-4.*)
+           SHLIB_CFLAGS="-export-dynamic -fPIC"
+           SHLIB_LD="cc -shared"
+           SHLIB_LD_LIBS='${LIBS}'
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS="-ldl"
+           LDFLAGS="$LDFLAGS -export-dynamic"
+           CC_SEARCH_FLAGS=""
+           LD_SEARCH_FLAGS=""
+           ;;
+       dgux*)
+           SHLIB_CFLAGS="-K PIC"
+           SHLIB_LD="cc -G"
+           SHLIB_LD_LIBS=""
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS="-ldl"
+           CC_SEARCH_FLAGS=""
+           LD_SEARCH_FLAGS=""
+           ;;
+       HP-UX-*.11.*)
+           # Use updated header definitions where possible
+           AC_DEFINE(_XOPEN_SOURCE)          # Use the XOPEN network library
+           AC_DEFINE(_XOPEN_SOURCE_EXTENDED) # Use the XOPEN network library
+           LIBS="$LIBS -lxnet"               # Use the XOPEN network library
+
+           if test "`uname -m`" = "ia64" ; then
+               SHLIB_SUFFIX=".so"
+           else
+               SHLIB_SUFFIX=".sl"
+           fi
+           AC_CHECK_LIB(dld, shl_load, tcl_ok=yes, tcl_ok=no)
+           if test "$tcl_ok" = yes; then
+               SHLIB_CFLAGS="+z"
+               SHLIB_LD="ld -b"
+               SHLIB_LD_LIBS='${LIBS}'
+               DL_OBJS="tclLoadShl.o"
+               DL_LIBS="-ldld"
+               LDFLAGS="$LDFLAGS -Wl,-E"
+               CC_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.'
+               LD_SEARCH_FLAGS='+s +b ${LIB_RUNTIME_DIR}:.'
+               LD_LIBRARY_PATH_VAR="SHLIB_PATH"
+           fi
+           if test "$GCC" = "yes" ; then
+               SHLIB_LD="gcc -shared"
+               SHLIB_LD_LIBS='${LIBS}'
+               LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+           fi
+
+           # Users may want PA-RISC 1.1/2.0 portable code - needs HP cc
+           #CFLAGS="$CFLAGS +DAportable"
+
+           # Check to enable 64-bit flags for compiler/linker
+           if test "$do64bit" = "yes" ; then
+               if test "$GCC" = "yes" ; then
+                   hpux_arch=`${CC} -dumpmachine`
+                   case $hpux_arch in
+                       hppa64*)
+                           # 64-bit gcc in use.  Fix flags for GNU ld.
+                           do64bit_ok=yes
+                           SHLIB_LD="${CC} -shared"
+                           SHLIB_LD_LIBS='${LIBS}'
+                           CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+                           LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+                           ;;
+                       *)
+                           AC_MSG_WARN([64bit mode not supported with GCC on $system])
+                           ;;
+                   esac
+               else
+                   do64bit_ok=yes
+                   CFLAGS="$CFLAGS +DD64"
+                   LDFLAGS="$LDFLAGS +DD64"
+               fi
+           fi
+           ;;
+       HP-UX-*.08.*|HP-UX-*.09.*|HP-UX-*.10.*)
+           SHLIB_SUFFIX=".sl"
+           AC_CHECK_LIB(dld, shl_load, tcl_ok=yes, tcl_ok=no)
+           if test "$tcl_ok" = yes; then
+               SHLIB_CFLAGS="+z"
+               SHLIB_LD="ld -b"
+               SHLIB_LD_LIBS=""
+               DL_OBJS="tclLoadShl.o"
+               DL_LIBS="-ldld"
+               LDFLAGS="$LDFLAGS -Wl,-E"
+               CC_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.'
+               LD_SEARCH_FLAGS='+s +b ${LIB_RUNTIME_DIR}:.'
+               LD_LIBRARY_PATH_VAR="SHLIB_PATH"
+           fi
+           ;;
+       IRIX-4.*)
+           SHLIB_CFLAGS="-G 0"
+           SHLIB_SUFFIX=".a"
+           SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0"
+           SHLIB_LD_LIBS='${LIBS}'
+           DL_OBJS="tclLoadAout.o"
+           DL_LIBS=""
+           LDFLAGS="$LDFLAGS -Wl,-D,08000000"
+           CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
+           LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+           SHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}.a'
+           ;;
+       IRIX-5.*)
+           SHLIB_CFLAGS=""
+           SHLIB_LD="ld -shared -rdata_shared"
+           SHLIB_LD_LIBS='${LIBS}'
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS=""
+           CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+           LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'
+           ;;
+       IRIX-6.*)
+           SHLIB_CFLAGS=""
+           SHLIB_LD="ld -n32 -shared -rdata_shared"
+           SHLIB_LD_LIBS='${LIBS}'
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS=""
+           CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+           LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'
+           if test "$GCC" = "yes" ; then
+               CFLAGS="$CFLAGS -mabi=n32"
+               LDFLAGS="$LDFLAGS -mabi=n32"
+           else
+               case $system in
+                   IRIX-6.3)
+                       # Use to build 6.2 compatible binaries on 6.3.
+                       CFLAGS="$CFLAGS -n32 -D_OLD_TERMIOS"
+                       ;;
+                   *)
+                       CFLAGS="$CFLAGS -n32"
+                       ;;
+               esac
+               LDFLAGS="$LDFLAGS -n32"
+           fi
+           ;;
+       IRIX64-6.*)
+           SHLIB_CFLAGS=""
+           SHLIB_LD="ld -n32 -shared -rdata_shared"
+           SHLIB_LD_LIBS='${LIBS}'
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS=""
+           CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+           LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'
+
+           # Check to enable 64-bit flags for compiler/linker
+
+           if test "$do64bit" = "yes" ; then
+               if test "$GCC" = "yes" ; then
+                   AC_MSG_WARN([64bit mode not supported by gcc])
+               else
+                   do64bit_ok=yes
+                   SHLIB_LD="ld -64 -shared -rdata_shared"
+                   CFLAGS="$CFLAGS -64"
+                   LDFLAGS="$LDFLAGS -64"
+               fi
+           fi
+           ;;
+       Linux*)
+           SHLIB_CFLAGS="-fPIC"
+           SHLIB_LD_LIBS='${LIBS}'
+           SHLIB_SUFFIX=".so"
+
+           CFLAGS_OPTIMIZE=-O2
+           # egcs-2.91.66 on Redhat Linux 6.0 generates lots of warnings 
+           # when you inline the string and math operations.  Turn this off to
+           # get rid of the warnings.
+           #CFLAGS_OPTIMIZE="${CFLAGS_OPTIMIZE} -D__NO_STRING_INLINES -D__NO_MATH_INLINES"
+
+           if test "$have_dl" = yes; then
+               SHLIB_LD='${CC} -shared ${CFLAGS} ${LDFLAGS}'
+               DL_OBJS="tclLoadDl.o"
+               DL_LIBS="-ldl"
+               LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
+               CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+               LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+           else
+               AC_CHECK_HEADER(dld.h, [
+                   SHLIB_LD="ld -shared"
+                   DL_OBJS="tclLoadDld.o"
+                   DL_LIBS="-ldld"
+                   CC_SEARCH_FLAGS=""
+                   LD_SEARCH_FLAGS=""])
+           fi
+           if test "`uname -m`" = "alpha" ; then
+               CFLAGS="$CFLAGS -mieee"
+           fi
+           if test $do64bit = yes; then
+               AC_CACHE_CHECK([if compiler accepts -m64 flag], tcl_cv_cc_m64, [
+                   hold_cflags=$CFLAGS
+                   CFLAGS="$CFLAGS -m64"
+                   AC_TRY_LINK(,, tcl_cv_cc_m64=yes, tcl_cv_cc_m64=no)
+                   CFLAGS=$hold_cflags])
+               if test $tcl_cv_cc_m64 = yes; then
+                   CFLAGS="$CFLAGS -m64"
+                   do64bit_ok=yes
+               fi
+           fi
+
+           # The combo of gcc + glibc has a bug related
+           # to inlining of functions like strtod(). The
+           # -fno-builtin flag should address this problem
+           # but it does not work. The -fno-inline flag
+           # is kind of overkill but it works.
+           # Disable inlining only when one of the
+           # files in compat/*.c is being linked in.
+           if test x"${LIBOBJS}" != x ; then
+               CFLAGS="$CFLAGS -fno-inline"
+           fi
+
+           # XIM peeking works under XFree86.
+           AC_DEFINE(PEEK_XCLOSEIM)
+
+           ;;
+       GNU*)
+           SHLIB_CFLAGS="-fPIC"
+           SHLIB_LD_LIBS='${LIBS}'
+           SHLIB_SUFFIX=".so"
+
+           if test "$have_dl" = yes; then
+               SHLIB_LD="${CC} -shared"
+               DL_OBJS=""
+               DL_LIBS="-ldl"
+               LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
+               CC_SEARCH_FLAGS=""
+               LD_SEARCH_FLAGS=""
+           else
+               AC_CHECK_HEADER(dld.h, [
+                   SHLIB_LD="ld -shared"
+                   DL_OBJS=""
+                   DL_LIBS="-ldld"
+                   CC_SEARCH_FLAGS=""
+                   LD_SEARCH_FLAGS=""])
+           fi
+           if test "`uname -m`" = "alpha" ; then
+               CFLAGS="$CFLAGS -mieee"
+           fi
+           ;;
+       Lynx*)
+           SHLIB_CFLAGS="-fPIC"
+           SHLIB_LD_LIBS='${LIBS}'
+           SHLIB_SUFFIX=".so"
+           CFLAGS_OPTIMIZE=-02
+           SHLIB_LD="${CC} -shared "
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS="-mshared -ldl"
+           LD_FLAGS="-Wl,--export-dynamic"
+           CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+           LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+           ;;
+       MP-RAS-02*)
+           SHLIB_CFLAGS="-K PIC"
+           SHLIB_LD="cc -G"
+           SHLIB_LD_LIBS=""
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS="-ldl"
+           CC_SEARCH_FLAGS=""
+           LD_SEARCH_FLAGS=""
+           ;;
+       MP-RAS-*)
+           SHLIB_CFLAGS="-K PIC"
+           SHLIB_LD="cc -G"
+           SHLIB_LD_LIBS=""
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS="-ldl"
+           LDFLAGS="$LDFLAGS -Wl,-Bexport"
+           CC_SEARCH_FLAGS=""
+           LD_SEARCH_FLAGS=""
+           ;;
+       NetBSD-*|FreeBSD-[[1-2]].*)
+           # Not available on all versions:  check for include file.
+           AC_CHECK_HEADER(dlfcn.h, [
+               # NetBSD/SPARC needs -fPIC, -fpic will not do.
+               SHLIB_CFLAGS="-fPIC"
+               SHLIB_LD="ld -Bshareable -x"
+               SHLIB_LD_LIBS='${LIBS}'
+               SHLIB_SUFFIX=".so"
+               DL_OBJS="tclLoadDl.o"
+               DL_LIBS=""
+               CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+               LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'
+               AC_CACHE_CHECK([for ELF], tcl_cv_ld_elf, [
+                   AC_EGREP_CPP(yes, [
+#ifdef __ELF__
+       yes
+#endif
+                   ], tcl_cv_ld_elf=yes, tcl_cv_ld_elf=no)])
+               if test $tcl_cv_ld_elf = yes; then
+                   SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so'
+               else
+                   SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0'
+               fi
+           ], [
+               SHLIB_CFLAGS=""
+               SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r"
+               SHLIB_LD_LIBS='${LIBS}'
+               SHLIB_SUFFIX=".a"
+               DL_OBJS="tclLoadAout.o"
+               DL_LIBS=""
+               CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
+               LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+               SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
+           ])
+
+           # FreeBSD doesn't handle version numbers with dots.
+
+           UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
+           TCL_LIB_VERSIONS_OK=nodots
+           ;;
+       OpenBSD-*)
+           case `arch -s` in
+           m88k|vax)
+               SHLIB_CFLAGS=""
+               SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r"
+               SHLIB_LD_LIBS='${LIBS}'
+               SHLIB_SUFFIX=".a"
+               DL_OBJS="tclLoadAout.o"
+               DL_LIBS=""
+               LDFLAGS=""
+               CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
+               LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+               SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
+               ;;
+           *)
+               # OpenBSD/SPARC[64] needs -fPIC, -fpic will not do.
+               case `machine` in
+               sparc|sparc64)
+                   SHLIB_CFLAGS="-fPIC";;
+               *)
+                   SHLIB_CFLAGS="-fpic";;
+               esac
+               SHLIB_LD="${CC} -shared ${SHLIB_CFLAGS}"
+               SHLIB_LD_LIBS='${LIBS}'
+               SHLIB_SUFFIX=".so"
+               DL_OBJS="tclLoadDl.o"
+               DL_LIBS=""
+               CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+               LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+               SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0'
+               AC_CACHE_CHECK([for ELF], tcl_cv_ld_elf, [
+                   AC_EGREP_CPP(yes, [
+#ifdef __ELF__
+       yes
+#endif
+                   ], tcl_cv_ld_elf=yes, tcl_cv_ld_elf=no)])
+               if test $tcl_cv_ld_elf = yes; then
+                   LDFLAGS=-Wl,-export-dynamic
+               else
+                   LDFLAGS=""
+               fi
+               ;;
+           esac
+
+           # OpenBSD doesn't do version numbers with dots.
+           UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
+           TCL_LIB_VERSIONS_OK=nodots
+           ;;
+       FreeBSD-*)
+           # FreeBSD 3.* and greater have ELF.
+           SHLIB_CFLAGS="-fPIC"
+           SHLIB_LD="ld -Bshareable -x"
+           SHLIB_LD_LIBS='${LIBS}'
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS=""
+           LDFLAGS="$LDFLAGS -export-dynamic"
+           CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+           LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'
+           if test "${TCL_THREADS}" = "1" ; then
+               # The -pthread needs to go in the CFLAGS, not LIBS
+               LIBS=`echo $LIBS | sed s/-pthread//`
+               CFLAGS="$CFLAGS -pthread"
+               LDFLAGS="$LDFLAGS -pthread"
+           fi
+           case $system in
+           FreeBSD-3.*)
+               # FreeBSD-3 doesn't handle version numbers with dots.
+               UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
+               SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so'
+               TCL_LIB_VERSIONS_OK=nodots
+               ;;
+           esac
+           ;;
+       Darwin-*)
+           CFLAGS_OPTIMIZE="-Os"
+           SHLIB_CFLAGS="-fno-common"
+           # To avoid discrepancies between what headers configure sees during
+           # preprocessing tests and compiling tests, move any -isysroot and
+           # -mmacosx-version-min flags from CFLAGS to CPPFLAGS:
+           CPPFLAGS="${CPPFLAGS} `echo " ${CFLAGS}" | \
+               awk 'BEGIN {FS=" +-";ORS=" "}; {for (i=2;i<=NF;i++) \
+               if ([$]i~/^(isysroot|mmacosx-version-min)/) print "-"[$]i}'`"
+           CFLAGS="`echo " ${CFLAGS}" | \
+               awk 'BEGIN {FS=" +-";ORS=" "}; {for (i=2;i<=NF;i++) \
+               if (!([$]i~/^(isysroot|mmacosx-version-min)/)) print "-"[$]i}'`"
+           if test $do64bit = yes; then
+               case `arch` in
+                   ppc)
+                       AC_CACHE_CHECK([if compiler accepts -arch ppc64 flag],
+                               tcl_cv_cc_arch_ppc64, [
+                           hold_cflags=$CFLAGS
+                           CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
+                           AC_TRY_LINK(,, tcl_cv_cc_arch_ppc64=yes,
+                                   tcl_cv_cc_arch_ppc64=no)
+                           CFLAGS=$hold_cflags])
+                       if test $tcl_cv_cc_arch_ppc64 = yes; then
+                           CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
+                           do64bit_ok=yes
+                       fi;;
+                   i386)
+                       AC_CACHE_CHECK([if compiler accepts -arch x86_64 flag],
+                               tcl_cv_cc_arch_x86_64, [
+                           hold_cflags=$CFLAGS
+                           CFLAGS="$CFLAGS -arch x86_64"
+                           AC_TRY_LINK(,, tcl_cv_cc_arch_x86_64=yes,
+                                   tcl_cv_cc_arch_x86_64=no)
+                           CFLAGS=$hold_cflags])
+                       if test $tcl_cv_cc_arch_x86_64 = yes; then
+                           CFLAGS="$CFLAGS -arch x86_64"
+                           do64bit_ok=yes
+                       fi;;
+                   *)
+                       AC_MSG_WARN([Don't know how enable 64-bit on architecture `arch`]);;
+               esac
+           else
+               # Check for combined 32-bit and 64-bit fat build
+               echo "$CFLAGS " | grep -E -q -- '-arch (ppc64|x86_64) ' && \
+                   echo "$CFLAGS " | grep -E -q -- '-arch (ppc|i386) ' && \
+                   fat_32_64=yes
+           fi
+           SHLIB_LD='${CC} -dynamiclib ${CFLAGS} ${LDFLAGS}'
+           AC_CACHE_CHECK([if ld accepts -single_module flag], tcl_cv_ld_single_module, [
+               hold_ldflags=$LDFLAGS
+               LDFLAGS="$LDFLAGS -dynamiclib -Wl,-single_module"
+               AC_TRY_LINK(, [int i;], tcl_cv_ld_single_module=yes, tcl_cv_ld_single_module=no)
+               LDFLAGS=$hold_ldflags])
+           if test $tcl_cv_ld_single_module = yes; then
+               SHLIB_LD="${SHLIB_LD} -Wl,-single_module"
+           fi
+           SHLIB_LD_LIBS='${LIBS}'
+           SHLIB_SUFFIX=".dylib"
+           DL_OBJS="tclLoadDyld.o"
+           DL_LIBS=""
+           # Don't use -prebind when building for Mac OS X 10.4 or later only:
+           test "`echo "${MACOSX_DEPLOYMENT_TARGET}" | awk -F '10\\.' '{print int([$]2)}'`" -lt 4 -a \
+               "`echo "${CPPFLAGS}" | awk -F '-mmacosx-version-min=10\\.' '{print int([$]2)}'`" -lt 4 && \
+               LDFLAGS="$LDFLAGS -prebind"
+           LDFLAGS="$LDFLAGS -headerpad_max_install_names"
+           AC_CACHE_CHECK([if ld accepts -search_paths_first flag], tcl_cv_ld_search_paths_first, [
+               hold_ldflags=$LDFLAGS
+               LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
+               AC_TRY_LINK(, [int i;], tcl_cv_ld_search_paths_first=yes, tcl_cv_ld_search_paths_first=no)
+               LDFLAGS=$hold_ldflags])
+           if test $tcl_cv_ld_search_paths_first = yes; then
+               LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
+           fi
+           CC_SEARCH_FLAGS=""
+           LD_SEARCH_FLAGS=""
+           LD_LIBRARY_PATH_VAR="DYLD_LIBRARY_PATH"
+           PLAT_OBJS=\$\(MAC\_OSX_OBJS\)
+           PLAT_SRCS=\$\(MAC\_OSX_SRCS\)
+           AC_MSG_CHECKING([whether to use CoreFoundation])
+           AC_ARG_ENABLE(corefoundation, [  --enable-corefoundation use CoreFoundation API [--enable-corefoundation]],
+               [tcl_corefoundation=$enableval], [tcl_corefoundation=yes])
+           AC_MSG_RESULT([$tcl_corefoundation])
+           if test $tcl_corefoundation = yes; then
+               AC_CACHE_CHECK([for CoreFoundation.framework], tcl_cv_lib_corefoundation, [
+                   hold_libs=$LIBS
+                   if test "$fat_32_64" = yes; then for v in CFLAGS CPPFLAGS LDFLAGS; do
+                       # On Tiger there is no 64-bit CF, so remove 64-bit archs
+                       # from CFLAGS et al. while testing for presence of CF.
+                       # 64-bit CF is disabled in tclUnixPort.h if necessary.
+                       eval 'hold_'$v'="$'$v'";'$v'="`echo "$'$v' "|sed -e "s/-arch ppc64 / /g" -e "s/-arch x86_64 / /g"`"'
+                   done; fi
+                   LIBS="$LIBS -framework CoreFoundation"
+                   AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>], 
+                       [CFBundleRef b = CFBundleGetMainBundle();], 
+                       tcl_cv_lib_corefoundation=yes, tcl_cv_lib_corefoundation=no)
+                   if test "$fat_32_64" = yes; then for v in CFLAGS CPPFLAGS LDFLAGS; do
+                       eval $v'="$hold_'$v'"'
+                   done; fi; LIBS=$hold_libs])
+               if test $tcl_cv_lib_corefoundation = yes; then
+                   LIBS="$LIBS -framework CoreFoundation"
+                   AC_DEFINE(HAVE_COREFOUNDATION)
+               else
+                   tcl_corefoundation=no
+               fi
+               if test "$fat_32_64" = yes -a $tcl_corefoundation = yes; then
+                   AC_CACHE_CHECK([for 64-bit CoreFoundation], tcl_cv_lib_corefoundation_64, [
+                       for v in CFLAGS CPPFLAGS LDFLAGS; do
+                           eval 'hold_'$v'="$'$v'";'$v'="`echo "$'$v' "|sed -e "s/-arch ppc / /g" -e "s/-arch i386 / /g"`"'
+                       done
+                       AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>], 
+                           [CFBundleRef b = CFBundleGetMainBundle();], 
+                           tcl_cv_lib_corefoundation_64=yes, tcl_cv_lib_corefoundation_64=no)
+                       for v in CFLAGS CPPFLAGS LDFLAGS; do
+                           eval $v'="$hold_'$v'"'
+                       done])
+                   if test $tcl_cv_lib_corefoundation_64 = no; then
+                       AC_DEFINE(NO_COREFOUNDATION_64)
+                   fi
+               fi
+           fi
+           AC_DEFINE(MAC_OSX_TCL)
+           ;;
+       NEXTSTEP-*)
+           SHLIB_CFLAGS=""
+           SHLIB_LD="cc -nostdlib -r"
+           SHLIB_LD_LIBS=""
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadNext.o"
+           DL_LIBS=""
+           CC_SEARCH_FLAGS=""
+           LD_SEARCH_FLAGS=""
+           ;;
+       OS/390-*)
+           CFLAGS_OPTIMIZE=""          # Optimizer is buggy
+           AC_DEFINE(_OE_SOCKETS)      # needed in sys/socket.h
+           ;;      
+       OSF1-1.0|OSF1-1.1|OSF1-1.2)
+           # OSF/1 1.[012] from OSF, and derivatives, including Paragon OSF/1
+           SHLIB_CFLAGS=""
+           # Hack: make package name same as library name
+           SHLIB_LD='ld -R -export $@:'
+           SHLIB_LD_LIBS=""
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadOSF.o"
+           DL_LIBS=""
+           CC_SEARCH_FLAGS=""
+           LD_SEARCH_FLAGS=""
+           ;;
+       OSF1-1.*)
+           # OSF/1 1.3 from OSF using ELF, and derivatives, including AD2
+           SHLIB_CFLAGS="-fPIC"
+           if test "$SHARED_BUILD" = "1" ; then
+               SHLIB_LD="ld -shared"
+           else
+               SHLIB_LD="ld -non_shared"
+           fi
+           SHLIB_LD_LIBS=""
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS=""
+           CC_SEARCH_FLAGS=""
+           LD_SEARCH_FLAGS=""
+           ;;
+       OSF1-V*)
+           # Digital OSF/1
+           SHLIB_CFLAGS=""
+           if test "$SHARED_BUILD" = "1" ; then
+               SHLIB_LD='ld -shared -expect_unresolved "*"'
+           else
+               SHLIB_LD='ld -non_shared -expect_unresolved "*"'
+           fi
+           SHLIB_LD_LIBS=""
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS=""
+           CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+           LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'
+           if test "$GCC" = "yes" ; then
+               CFLAGS="$CFLAGS -mieee"
+            else
+               CFLAGS="$CFLAGS -DHAVE_TZSET -std1 -ieee"
+           fi
+           # see pthread_intro(3) for pthread support on osf1, k.furukawa
+           if test "${TCL_THREADS}" = "1" ; then
+               CFLAGS="$CFLAGS -DHAVE_PTHREAD_ATTR_SETSTACKSIZE"
+               CFLAGS="$CFLAGS -DTCL_THREAD_STACK_MIN=PTHREAD_STACK_MIN*64"
+               LIBS=`echo $LIBS | sed s/-lpthreads//`
+               if test "$GCC" = "yes" ; then
+                   LIBS="$LIBS -lpthread -lmach -lexc"
+               else
+                   CFLAGS="$CFLAGS -pthread"
+                   LDFLAGS="$LDFLAGS -pthread"
+               fi
+           fi
+
+           ;;
+       QNX-6*)
+           # QNX RTP
+           # This may work for all QNX, but it was only reported for v6.
+           SHLIB_CFLAGS="-fPIC"
+           SHLIB_LD="ld -Bshareable -x"
+           SHLIB_LD_LIBS=""
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           # dlopen is in -lc on QNX
+           DL_LIBS=""
+           CC_SEARCH_FLAGS=""
+           LD_SEARCH_FLAGS=""
+           ;;
+       RISCos-*)
+           SHLIB_CFLAGS="-G 0"
+           SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0"
+           SHLIB_LD_LIBS='${LIBS}'
+           SHLIB_SUFFIX=".a"
+           DL_OBJS="tclLoadAout.o"
+           DL_LIBS=""
+           LDFLAGS="$LDFLAGS -Wl,-D,08000000"
+           CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
+           LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+           ;;
+       SCO_SV-3.2*)
+           # Note, dlopen is available only on SCO 3.2.5 and greater. However,
+           # this test works, since "uname -s" was non-standard in 3.2.4 and
+           # below.
+           if test "$GCC" = "yes" ; then
+               SHLIB_CFLAGS="-fPIC -melf"
+               LDFLAGS="$LDFLAGS -melf -Wl,-Bexport"
+           else
+               SHLIB_CFLAGS="-Kpic -belf"
+               LDFLAGS="$LDFLAGS -belf -Wl,-Bexport"
+           fi
+           SHLIB_LD="ld -G"
+           SHLIB_LD_LIBS=""
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS=""
+           CC_SEARCH_FLAGS=""
+           LD_SEARCH_FLAGS=""
+           ;;
+       SINIX*5.4*)
+           SHLIB_CFLAGS="-K PIC"
+           SHLIB_LD="cc -G"
+           SHLIB_LD_LIBS=""
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS="-ldl"
+           CC_SEARCH_FLAGS=""
+           LD_SEARCH_FLAGS=""
+           ;;
+       SunOS-4*)
+           SHLIB_CFLAGS="-PIC"
+           SHLIB_LD="ld"
+           SHLIB_LD_LIBS=""
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS="-ldl"
+           CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
+           LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+
+           # SunOS can't handle version numbers with dots in them in library
+           # specs, like -ltcl7.5, so use -ltcl75 instead.  Also, it
+           # requires an extra version number at the end of .so file names.
+           # So, the library has to have a name like libtcl75.so.1.0
+
+           SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0'
+           UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
+           TCL_LIB_VERSIONS_OK=nodots
+           ;;
+       SunOS-5.[[0-6]])
+           # Careful to not let 5.10+ fall into this case
+
+           # Note: If _REENTRANT isn't defined, then Solaris
+           # won't define thread-safe library routines.
+
+           AC_DEFINE(_REENTRANT)
+           AC_DEFINE(_POSIX_PTHREAD_SEMANTICS)
+
+           SHLIB_CFLAGS="-KPIC"
+
+           # Note: need the LIBS below, otherwise Tk won't find Tcl's
+           # symbols when dynamically loaded into tclsh.
+
+           SHLIB_LD_LIBS='${LIBS}'
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS="-ldl"
+           if test "$GCC" = "yes" ; then
+               SHLIB_LD="$CC -shared"
+               CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
+               LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+           else
+               SHLIB_LD="/usr/ccs/bin/ld -G -z text"
+               CC_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
+               LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+           fi
+           ;;
+       SunOS-5*)
+           # Note: If _REENTRANT isn't defined, then Solaris
+           # won't define thread-safe library routines.
+
+           AC_DEFINE(_REENTRANT)
+           AC_DEFINE(_POSIX_PTHREAD_SEMANTICS)
+
+           SHLIB_CFLAGS="-KPIC"
+
+           # Check to enable 64-bit flags for compiler/linker
+           if test "$do64bit" = "yes" ; then
+               arch=`isainfo`
+               if test "$arch" = "sparcv9 sparc" ; then
+                       if test "$GCC" = "yes" ; then
+                           if test "`gcc -dumpversion | awk -F. '{print [$]1}'`" -lt "3" ; then
+                               AC_MSG_WARN([64bit mode not supported with GCC < 3.2 on $system])
+                           else
+                               do64bit_ok=yes
+                               CFLAGS="$CFLAGS -m64 -mcpu=v9"
+                               LDFLAGS="$LDFLAGS -m64 -mcpu=v9"
+                               SHLIB_CFLAGS="-fPIC"
+                           fi
+                       else
+                           do64bit_ok=yes
+                           if test "$do64bitVIS" = "yes" ; then
+                               CFLAGS="$CFLAGS -xarch=v9a"
+                               LDFLAGS="$LDFLAGS -xarch=v9a"
+                           else
+                               CFLAGS="$CFLAGS -xarch=v9"
+                               LDFLAGS="$LDFLAGS -xarch=v9"
+                           fi
+                           # Solaris 64 uses this as well
+                           #LD_LIBRARY_PATH_VAR="LD_LIBRARY_PATH_64"
+                       fi
+               elif test "$arch" = "amd64 i386" ; then
+                   if test "$GCC" = "yes" ; then
+                       AC_MSG_WARN([64bit mode not supported with GCC on $system])
+                   else
+                       do64bit_ok=yes
+                       CFLAGS="$CFLAGS -xarch=amd64"
+                       LDFLAGS="$LDFLAGS -xarch=amd64"
+                   fi
+               else
+                   AC_MSG_WARN([64bit mode not supported for $arch])
+               fi
+           fi
+           
+           # Note: need the LIBS below, otherwise Tk won't find Tcl's
+           # symbols when dynamically loaded into tclsh.
+
+           SHLIB_LD_LIBS='${LIBS}'
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS="-ldl"
+           if test "$GCC" = "yes" ; then
+               SHLIB_LD="$CC -shared"
+               CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
+               LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+               if test "$do64bit_ok" = "yes" ; then
+                   # We need to specify -static-libgcc or we need to
+                   # add the path to the sparv9 libgcc.
+                   SHLIB_LD="$SHLIB_LD -m64 -mcpu=v9 -static-libgcc"
+                   # for finding sparcv9 libgcc, get the regular libgcc
+                   # path, remove so name and append 'sparcv9'
+                   #v9gcclibdir="`gcc -print-file-name=libgcc_s.so` | ..."
+                   #CC_SEARCH_FLAGS="${CC_SEARCH_FLAGS},-R,$v9gcclibdir"
+               fi
+           else
+               case $system in
+                   SunOS-5.[[1-9]][[0-9]]*)
+                       SHLIB_LD='${CC} -G -z text';;
+                   *)
+                       SHLIB_LD="/usr/ccs/bin/ld -G -z text";;
+               esac
+               CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
+               LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
+           fi
+           ;;
+       ULTRIX-4.*)
+           SHLIB_CFLAGS="-G 0"
+           SHLIB_SUFFIX=".a"
+           SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0"
+           SHLIB_LD_LIBS='${LIBS}'
+           DL_OBJS="tclLoadAout.o"
+           DL_LIBS=""
+           LDFLAGS="$LDFLAGS -Wl,-D,08000000"
+           CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
+           LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+           if test "$GCC" != "yes" ; then
+               CFLAGS="$CFLAGS -DHAVE_TZSET -std1"
+           fi
+           ;;
+       UNIX_SV* | UnixWare-5*)
+           SHLIB_CFLAGS="-KPIC"
+           SHLIB_LD="cc -G"
+           SHLIB_LD_LIBS=""
+           SHLIB_SUFFIX=".so"
+           DL_OBJS="tclLoadDl.o"
+           DL_LIBS="-ldl"
+           # Some UNIX_SV* systems (unixware 1.1.2 for example) have linkers
+           # that don't grok the -Bexport option.  Test that it does.
+           AC_CACHE_CHECK([for ld accepts -Bexport flag], tcl_cv_ld_Bexport, [
+               hold_ldflags=$LDFLAGS
+               LDFLAGS="$LDFLAGS -Wl,-Bexport"
+               AC_TRY_LINK(, [int i;], tcl_cv_ld_Bexport=yes, tcl_cv_ld_Bexport=no)
+               LDFLAGS=$hold_ldflags])
+           if test $tcl_cv_ld_Bexport = yes; then
+               LDFLAGS="$LDFLAGS -Wl,-Bexport"
+           fi
+           CC_SEARCH_FLAGS=""
+           LD_SEARCH_FLAGS=""
+           ;;
+    esac
+
+    if test "$do64bit" = "yes" -a "$do64bit_ok" = "no" ; then
+       AC_MSG_WARN([64bit support being disabled -- don't know magic for this platform])
+    fi
+
+dnl # Add any CPPFLAGS set in the environment to our CFLAGS, but delay doing so
+dnl # until the end of configure, as configure's compile and link tests use
+dnl # both CPPFLAGS and CFLAGS (unlike our compile and link) but configure's
+dnl # preprocessing tests use only CPPFLAGS.
+    SC_CONFIG_COMMANDS_PRE([CFLAGS="${CFLAGS} ${CPPFLAGS}"; CPPFLAGS=""])
+
+    # Step 4: If pseudo-static linking is in use (see K. B. Kenny, "Dynamic
+    # Loading for Tcl -- What Became of It?".  Proc. 2nd Tcl/Tk Workshop,
+    # New Orleans, LA, Computerized Processes Unlimited, 1994), then we need
+    # to determine which of several header files defines the a.out file
+    # format (a.out.h, sys/exec.h, or sys/exec_aout.h).  At present, we
+    # support only a file format that is more or less version-7-compatible. 
+    # In particular,
+    #  - a.out files must begin with `struct exec'.
+    #  - the N_TXTOFF on the `struct exec' must compute the seek address
+    #    of the text segment
+    #  - The `struct exec' must contain a_magic, a_text, a_data, a_bss
+    #    and a_entry fields.
+    # The following compilation should succeed if and only if either sys/exec.h
+    # or a.out.h is usable for the purpose.
+    #
+    # Note that the modified COFF format used on MIPS Ultrix 4.x is usable; the
+    # `struct exec' includes a second header that contains information that
+    # duplicates the v7 fields that are needed.
+
+    if test "x$DL_OBJS" = "xtclLoadAout.o" ; then
+       AC_CACHE_CHECK([sys/exec.h], tcl_cv_sysexec_h, [
+       AC_TRY_COMPILE([#include <sys/exec.h>],[
+           struct exec foo;
+           unsigned long seek;
+           int flag;
+#if defined(__mips) || defined(mips)
+           seek = N_TXTOFF (foo.ex_f, foo.ex_o);
+#else
+           seek = N_TXTOFF (foo);
+#endif
+           flag = (foo.a_magic == OMAGIC);
+           return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry;
+    ], tcl_cv_sysexec_h=usable, tcl_cv_sysexec_h=unusable)])
+       if test $tcl_cv_sysexec_h = usable; then
+           AC_DEFINE(USE_SYS_EXEC_H)
+       else
+           AC_CACHE_CHECK([a.out.h], tcl_cv_aout_h, [
+           AC_TRY_COMPILE([#include <a.out.h>],[
+               struct exec foo;
+               unsigned long seek;
+               int flag;
+#if defined(__mips) || defined(mips)
+               seek = N_TXTOFF (foo.ex_f, foo.ex_o);
+#else
+               seek = N_TXTOFF (foo);
+#endif
+               flag = (foo.a_magic == OMAGIC);
+               return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry;
+           ], tcl_cv_aout_h=usable, tcl_cv_aout_h=unusable)])
+           if test $tcl_cv_aout_h = usable; then
+               AC_DEFINE(USE_A_OUT_H)
+           else
+               AC_CACHE_CHECK([sys/exec_aout.h], tcl_cv_sysexecaout_h, [
+               AC_TRY_COMPILE([#include <sys/exec_aout.h>],[
+                   struct exec foo;
+                   unsigned long seek;
+                   int flag;
+#if defined(__mips) || defined(mips)
+                   seek = N_TXTOFF (foo.ex_f, foo.ex_o);
+#else
+                   seek = N_TXTOFF (foo);
+#endif
+                   flag = (foo.a_midmag == OMAGIC);
+                   return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry;
+               ], tcl_cv_sysexecaout_h=usable, tcl_cv_sysexecaout_h=unusable)])
+               if test $tcl_cv_sysexecaout_h = usable; then
+                   AC_DEFINE(USE_SYS_EXEC_AOUT_H)
+               else
+                   DL_OBJS=""
+               fi
+           fi
+       fi
+    fi
+
+    # Step 5: disable dynamic loading if requested via a command-line switch.
+
+    AC_ARG_ENABLE(load, [  --disable-load          disallow dynamic loading and "load" command],
+       [tcl_ok=$enableval], [tcl_ok=yes])
+    if test "$tcl_ok" = "no"; then
+       DL_OBJS=""
+    fi
+
+    if test "x$DL_OBJS" != "x" ; then
+       BUILD_DLTEST="\$(DLTEST_TARGETS)"
+    else
+       echo "Can't figure out how to do dynamic loading or shared libraries"
+       echo "on this system."
+       SHLIB_CFLAGS=""
+       SHLIB_LD=""
+       SHLIB_SUFFIX=""
+       DL_OBJS="tclLoadNone.o"
+       DL_LIBS=""
+       LDFLAGS="$LDFLAGS_ORIG"
+       CC_SEARCH_FLAGS=""
+       LD_SEARCH_FLAGS=""
+       BUILD_DLTEST=""
+    fi
+
+    # If we're running gcc, then change the C flags for compiling shared
+    # libraries to the right flags for gcc, instead of those for the
+    # standard manufacturer compiler.
+
+    if test "$DL_OBJS" != "tclLoadNone.o" ; then
+       if test "$GCC" = "yes" ; then
+           case $system in
+               AIX-*)
+                   ;;
+               BSD/OS*)
+                   ;;
+               IRIX*)
+                   ;;
+               NetBSD-*|FreeBSD-*|OpenBSD-*)
+                   ;;
+               Darwin-*)
+                   ;;
+               RISCos-*)
+                   ;;
+               SCO_SV-3.2*)
+                   ;;
+               ULTRIX-4.*)
+                   ;;
+               *)
+                   SHLIB_CFLAGS="-fPIC"
+                   ;;
+           esac
+       fi
+    fi
+
+    if test "$SHARED_LIB_SUFFIX" = "" ; then
+       SHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}${SHLIB_SUFFIX}'
+    fi
+    if test "$UNSHARED_LIB_SUFFIX" = "" ; then
+       UNSHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}.a'
+    fi
+
+    if test "${SHARED_BUILD}" = "1" && test "${SHLIB_SUFFIX}" != "" ; then
+        LIB_SUFFIX=${SHARED_LIB_SUFFIX}
+        MAKE_LIB='${SHLIB_LD} -o [$]@ ${OBJS} ${SHLIB_LD_LIBS} ${TCL_SHLIB_LD_EXTRAS} ${TK_SHLIB_LD_EXTRAS} ${LD_SEARCH_FLAGS}'
+        INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) $(LIB_INSTALL_DIR)/$(LIB_FILE)'
+    else
+        LIB_SUFFIX=${UNSHARED_LIB_SUFFIX}
+
+        if test "$RANLIB" = "" ; then
+            MAKE_LIB='$(STLIB_LD) [$]@ ${OBJS}'
+            INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) $(LIB_INSTALL_DIR)/$(LIB_FILE)'
+        else
+            MAKE_LIB='${STLIB_LD} [$]@ ${OBJS} ; ${RANLIB} [$]@'
+            INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) $(LIB_INSTALL_DIR)/$(LIB_FILE) ; (cd $(LIB_INSTALL_DIR) ; $(RANLIB) $(LIB_FILE))'
+        fi
+
+dnl        Not at all clear what this was doing in Tcl's configure.in
+dnl        or why it was needed was needed. In any event, this sort of
+dnl        things needs to be done in the big loop above.
+dnl        REMOVE THIS BLOCK LATER! (mdejong)
+dnl        case $system in
+dnl            BSD/OS*)
+dnl                ;;
+dnl            AIX-[[1-4]].*)
+dnl                ;;
+dnl            *)
+dnl                SHLIB_LD_LIBS=""
+dnl                ;;
+dnl        esac
+    fi
+
+
+    # Stub lib does not depend on shared/static configuration
+    if test "$RANLIB" = "" ; then
+        MAKE_STUB_LIB='${STLIB_LD} [$]@ ${STUB_LIB_OBJS}'
+        INSTALL_STUB_LIB='$(INSTALL_LIBRARY) $(STUB_LIB_FILE) $(LIB_INSTALL_DIR)/$(STUB_LIB_FILE)'
+    else
+        MAKE_STUB_LIB='${STLIB_LD} [$]@ ${STUB_LIB_OBJS} ; ${RANLIB} [$]@'
+        INSTALL_STUB_LIB='$(INSTALL_LIBRARY) $(STUB_LIB_FILE) $(LIB_INSTALL_DIR)/$(STUB_LIB_FILE) ; (cd $(LIB_INSTALL_DIR) ; $(RANLIB) $(STUB_LIB_FILE))'
+    fi
+
+
+    AC_SUBST(DL_LIBS)
+
+    AC_SUBST(DL_OBJS)
+    AC_SUBST(PLAT_OBJS)
+    AC_SUBST(PLAT_SRCS)
+    AC_SUBST(CFLAGS)
+    AC_SUBST(CFLAGS_DEBUG)
+    AC_SUBST(CFLAGS_OPTIMIZE)
+    AC_SUBST(CFLAGS_WARNING)
+
+    AC_SUBST(LDFLAGS)
+    AC_SUBST(LDFLAGS_DEBUG)
+    AC_SUBST(LDFLAGS_OPTIMIZE)
+    AC_SUBST(CC_SEARCH_FLAGS)
+    AC_SUBST(LD_SEARCH_FLAGS)
+
+    AC_SUBST(STLIB_LD)
+    AC_SUBST(SHLIB_LD)
+    AC_SUBST(TCL_SHLIB_LD_EXTRAS)
+    AC_SUBST(TK_SHLIB_LD_EXTRAS)
+    AC_SUBST(SHLIB_LD_LIBS)
+    AC_SUBST(SHLIB_CFLAGS)
+    AC_SUBST(SHLIB_SUFFIX)
+
+    AC_SUBST(MAKE_LIB)
+    AC_SUBST(MAKE_STUB_LIB)
+    AC_SUBST(INSTALL_LIB)
+    AC_SUBST(INSTALL_STUB_LIB)
+    AC_SUBST(RANLIB)
+])
+
+#--------------------------------------------------------------------
+# SC_SERIAL_PORT
+#
+#      Determine which interface to use to talk to the serial port.
+#      Note that #include lines must begin in leftmost column for
+#      some compilers to recognize them as preprocessor directives,
+#      and some build environments have stdin not pointing at a
+#      pseudo-terminal (usually /dev/null instead.)
+#
+# Arguments:
+#      none
+#      
+# Results:
+#
+#      Defines only one of the following vars:
+#              HAVE_SYS_MODEM_H
+#              USE_TERMIOS
+#              USE_TERMIO
+#              USE_SGTTY
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_SERIAL_PORT], [
+    AC_CHECK_HEADERS(sys/modem.h)
+    AC_CACHE_CHECK([termios vs. termio vs. sgtty], tcl_cv_api_serial, [
+    AC_TRY_RUN([
+#include <termios.h>
+
+int main() {
+    struct termios t;
+    if (tcgetattr(0, &t) == 0) {
+       cfsetospeed(&t, 0);
+       t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB;
+       return 0;
+    }
+    return 1;
+}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+    if test $tcl_cv_api_serial = no ; then
+       AC_TRY_RUN([
+#include <termio.h>
+
+int main() {
+    struct termio t;
+    if (ioctl(0, TCGETA, &t) == 0) {
+       t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
+       return 0;
+    }
+    return 1;
+}], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+    fi
+    if test $tcl_cv_api_serial = no ; then
+       AC_TRY_RUN([
+#include <sgtty.h>
+
+int main() {
+    struct sgttyb t;
+    if (ioctl(0, TIOCGETP, &t) == 0) {
+       t.sg_ospeed = 0;
+       t.sg_flags |= ODDP | EVENP | RAW;
+       return 0;
+    }
+    return 1;
+}], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+    fi
+    if test $tcl_cv_api_serial = no ; then
+       AC_TRY_RUN([
+#include <termios.h>
+#include <errno.h>
+
+int main() {
+    struct termios t;
+    if (tcgetattr(0, &t) == 0
+       || errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
+       cfsetospeed(&t, 0);
+       t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB;
+       return 0;
+    }
+    return 1;
+}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+    fi
+    if test $tcl_cv_api_serial = no; then
+       AC_TRY_RUN([
+#include <termio.h>
+#include <errno.h>
+
+int main() {
+    struct termio t;
+    if (ioctl(0, TCGETA, &t) == 0
+       || errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
+       t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
+       return 0;
+    }
+    return 1;
+    }], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+    fi
+    if test $tcl_cv_api_serial = no; then
+       AC_TRY_RUN([
+#include <sgtty.h>
+#include <errno.h>
+
+int main() {
+    struct sgttyb t;
+    if (ioctl(0, TIOCGETP, &t) == 0
+       || errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
+       t.sg_ospeed = 0;
+       t.sg_flags |= ODDP | EVENP | RAW;
+       return 0;
+    }
+    return 1;
+}], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=none, tcl_cv_api_serial=none)
+    fi])
+    case $tcl_cv_api_serial in
+       termios) AC_DEFINE(USE_TERMIOS);;
+       termio)  AC_DEFINE(USE_TERMIO);;
+       sgtty)   AC_DEFINE(USE_SGTTY);;
+    esac
+])
+
+#--------------------------------------------------------------------
+# SC_MISSING_POSIX_HEADERS
+#
+#      Supply substitutes for missing POSIX header files.  Special
+#      notes:
+#          - stdlib.h doesn't define strtol, strtoul, or
+#            strtod insome versions of SunOS
+#          - some versions of string.h don't declare procedures such
+#            as strstr
+#
+# Arguments:
+#      none
+#      
+# Results:
+#
+#      Defines some of the following vars:
+#              NO_DIRENT_H
+#              NO_ERRNO_H
+#              NO_VALUES_H
+#              HAVE_LIMITS_H or NO_LIMITS_H
+#              NO_STDLIB_H
+#              NO_STRING_H
+#              NO_SYS_WAIT_H
+#              NO_DLFCN_H
+#              HAVE_UNISTD_H
+#              HAVE_SYS_PARAM_H
+#
+#              HAVE_STRING_H ?
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_MISSING_POSIX_HEADERS], [
+    AC_CACHE_CHECK([dirent.h], tcl_cv_dirent_h, [
+    AC_TRY_LINK([#include <sys/types.h>
+#include <dirent.h>], [
+#ifndef _POSIX_SOURCE
+#   ifdef __Lynx__
+       /*
+        * Generate compilation error to make the test fail:  Lynx headers
+        * are only valid if really in the POSIX environment.
+        */
+
+       missing_procedure();
+#   endif
+#endif
+DIR *d;
+struct dirent *entryPtr;
+char *p;
+d = opendir("foobar");
+entryPtr = readdir(d);
+p = entryPtr->d_name;
+closedir(d);
+], tcl_cv_dirent_h=yes, tcl_cv_dirent_h=no)])
+
+    if test $tcl_cv_dirent_h = no; then
+       AC_DEFINE(NO_DIRENT_H)
+    fi
+
+    AC_CHECK_HEADER(errno.h, , [AC_DEFINE(NO_ERRNO_H)])
+    AC_CHECK_HEADER(float.h, , [AC_DEFINE(NO_FLOAT_H)])
+    AC_CHECK_HEADER(values.h, , [AC_DEFINE(NO_VALUES_H)])
+    AC_CHECK_HEADER(limits.h,
+       [AC_DEFINE(HAVE_LIMITS_H)], [AC_DEFINE(NO_LIMITS_H)])
+    AC_CHECK_HEADER(stdlib.h, tcl_ok=1, tcl_ok=0)
+    AC_EGREP_HEADER(strtol, stdlib.h, , tcl_ok=0)
+    AC_EGREP_HEADER(strtoul, stdlib.h, , tcl_ok=0)
+    AC_EGREP_HEADER(strtod, stdlib.h, , tcl_ok=0)
+    if test $tcl_ok = 0; then
+       AC_DEFINE(NO_STDLIB_H)
+    fi
+    AC_CHECK_HEADER(string.h, tcl_ok=1, tcl_ok=0)
+    AC_EGREP_HEADER(strstr, string.h, , tcl_ok=0)
+    AC_EGREP_HEADER(strerror, string.h, , tcl_ok=0)
+
+    # See also memmove check below for a place where NO_STRING_H can be
+    # set and why.
+
+    if test $tcl_ok = 0; then
+       AC_DEFINE(NO_STRING_H)
+    fi
+
+    AC_CHECK_HEADER(sys/wait.h, , [AC_DEFINE(NO_SYS_WAIT_H)])
+    AC_CHECK_HEADER(dlfcn.h, , [AC_DEFINE(NO_DLFCN_H)])
+
+    # OS/390 lacks sys/param.h (and doesn't need it, by chance).
+    AC_HAVE_HEADERS(unistd.h sys/param.h)
+])
+
+#--------------------------------------------------------------------
+# SC_PATH_X
+#
+#      Locate the X11 header files and the X11 library archive.  Try
+#      the ac_path_x macro first, but if it doesn't find the X stuff
+#      (e.g. because there's no xmkmf program) then check through
+#      a list of possible directories.  Under some conditions the
+#      autoconf macro will return an include directory that contains
+#      no include files, so double-check its result just to be safe.
+#
+# Arguments:
+#      none
+#      
+# Results:
+#
+#      Sets the the following vars:
+#              XINCLUDES
+#              XLIBSW
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_PATH_X], [
+    AC_PATH_X
+    not_really_there=""
+    if test "$no_x" = ""; then
+       if test "$x_includes" = ""; then
+           AC_TRY_CPP([#include <X11/XIntrinsic.h>], , not_really_there="yes")
+       else
+           if test ! -r $x_includes/X11/Intrinsic.h; then
+               not_really_there="yes"
+           fi
+       fi
+    fi
+    if test "$no_x" = "yes" -o "$not_really_there" = "yes"; then
+       AC_MSG_CHECKING([for X11 header files])
+       found_xincludes="no"
+       AC_TRY_CPP([#include <X11/Intrinsic.h>], found_xincludes="yes", found_xincludes="no")
+       if test "$found_xincludes" = "no"; then
+           dirs="/usr/unsupported/include /usr/local/include /usr/X386/include /usr/X11R6/include /usr/X11R5/include /usr/include/X11R5 /usr/include/X11R4 /usr/openwin/include /usr/X11/include /usr/sww/include"
+           for i in $dirs ; do
+               if test -r $i/X11/Intrinsic.h; then
+                   AC_MSG_RESULT([$i])
+                   XINCLUDES=" -I$i"
+                   found_xincludes="yes"
+                   break
+               fi
+           done
+       fi
+    else
+       if test "$x_includes" != ""; then
+           XINCLUDES="-I$x_includes"
+           found_xincludes="yes"
+       fi
+    fi
+    if test found_xincludes = "no"; then
+       AC_MSG_RESULT([couldn't find any!])
+    fi
+
+    if test "$no_x" = yes; then
+       AC_MSG_CHECKING([for X11 libraries])
+       XLIBSW=nope
+       dirs="/usr/unsupported/lib /usr/local/lib /usr/X386/lib /usr/X11R6/lib /usr/X11R5/lib /usr/lib/X11R5 /usr/lib/X11R4 /usr/openwin/lib /usr/X11/lib /usr/sww/X11/lib"
+       for i in $dirs ; do
+           if test -r $i/libX11.a -o -r $i/libX11.so -o -r $i/libX11.sl; then
+               AC_MSG_RESULT([$i])
+               XLIBSW="-L$i -lX11"
+               x_libraries="$i"
+               break
+           fi
+       done
+    else
+       if test "$x_libraries" = ""; then
+           XLIBSW=-lX11
+       else
+           XLIBSW="-L$x_libraries -lX11"
+       fi
+    fi
+    if test "$XLIBSW" = nope ; then
+       AC_CHECK_LIB(Xwindow, XCreateWindow, XLIBSW=-lXwindow)
+    fi
+    if test "$XLIBSW" = nope ; then
+       AC_MSG_RESULT([could not find any!  Using -lX11.])
+       XLIBSW=-lX11
+    fi
+])
+
+#--------------------------------------------------------------------
+# SC_BLOCKING_STYLE
+#
+#      The statements below check for systems where POSIX-style
+#      non-blocking I/O (O_NONBLOCK) doesn't work or is unimplemented. 
+#      On these systems (mostly older ones), use the old BSD-style
+#      FIONBIO approach instead.
+#
+# Arguments:
+#      none
+#      
+# Results:
+#
+#      Defines some of the following vars:
+#              HAVE_SYS_IOCTL_H
+#              HAVE_SYS_FILIO_H
+#              USE_FIONBIO
+#              O_NONBLOCK
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_BLOCKING_STYLE], [
+    AC_CHECK_HEADERS(sys/ioctl.h)
+    AC_CHECK_HEADERS(sys/filio.h)
+    SC_CONFIG_SYSTEM
+    AC_MSG_CHECKING([FIONBIO vs. O_NONBLOCK for nonblocking I/O])
+    case $system in
+       # There used to be code here to use FIONBIO under AIX.  However, it
+       # was reported that FIONBIO doesn't work under AIX 3.2.5.  Since
+       # using O_NONBLOCK seems fine under AIX 4.*, I removed the FIONBIO
+       # code (JO, 5/31/97).
+
+       OSF*)
+           AC_DEFINE(USE_FIONBIO)
+           AC_MSG_RESULT([FIONBIO])
+           ;;
+       SunOS-4*)
+           AC_DEFINE(USE_FIONBIO)
+           AC_MSG_RESULT([FIONBIO])
+           ;;
+       ULTRIX-4.*)
+           AC_DEFINE(USE_FIONBIO)
+           AC_MSG_RESULT([FIONBIO])
+           ;;
+       *)
+           AC_MSG_RESULT([O_NONBLOCK])
+           ;;
+    esac
+])
+
+#--------------------------------------------------------------------
+# SC_TIME_HANLDER
+#
+#      Checks how the system deals with time.h, what time structures
+#      are used on the system, and what fields the structures have.
+#
+# Arguments:
+#      none
+#      
+# Results:
+#
+#      Defines some of the following vars:
+#              USE_DELTA_FOR_TZ
+#              HAVE_TM_GMTOFF
+#              HAVE_TM_TZADJ
+#              HAVE_TIMEZONE_VAR
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TIME_HANDLER], [
+    AC_CHECK_HEADERS(sys/time.h)
+    AC_HEADER_TIME
+    AC_STRUCT_TIMEZONE
+
+    AC_CHECK_FUNCS(gmtime_r localtime_r)
+
+    AC_CACHE_CHECK([tm_tzadj in struct tm], tcl_cv_member_tm_tzadj, [
+       AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_tzadj;],
+           tcl_cv_member_tm_tzadj=yes, tcl_cv_member_tm_tzadj=no)])
+    if test $tcl_cv_member_tm_tzadj = yes ; then
+       AC_DEFINE(HAVE_TM_TZADJ)
+    fi
+
+    AC_CACHE_CHECK([tm_gmtoff in struct tm], tcl_cv_member_tm_gmtoff, [
+       AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_gmtoff;],
+           tcl_cv_member_tm_gmtoff=yes, tcl_cv_member_tm_gmtoff=no)])
+    if test $tcl_cv_member_tm_gmtoff = yes ; then
+       AC_DEFINE(HAVE_TM_GMTOFF)
+    fi
+
+    #
+    # Its important to include time.h in this check, as some systems
+    # (like convex) have timezone functions, etc.
+    #
+    AC_CACHE_CHECK([long timezone variable], tcl_cv_timezone_long, [
+       AC_TRY_COMPILE([#include <time.h>],
+           [extern long timezone;
+           timezone += 1;
+           exit (0);],
+           tcl_cv_timezone_long=yes, tcl_cv_timezone_long=no)])
+    if test $tcl_cv_timezone_long = yes ; then
+       AC_DEFINE(HAVE_TIMEZONE_VAR)
+    else
+       #
+       # On some systems (eg IRIX 6.2), timezone is a time_t and not a long.
+       #
+       AC_CACHE_CHECK([time_t timezone variable], tcl_cv_timezone_time, [
+           AC_TRY_COMPILE([#include <time.h>],
+               [extern time_t timezone;
+               timezone += 1;
+               exit (0);],
+               tcl_cv_timezone_time=yes, tcl_cv_timezone_time=no)])
+       if test $tcl_cv_timezone_time = yes ; then
+           AC_DEFINE(HAVE_TIMEZONE_VAR)
+       fi
+    fi
+])
+
+#--------------------------------------------------------------------
+# SC_BUGGY_STRTOD
+#
+#      Under Solaris 2.4, strtod returns the wrong value for the
+#      terminating character under some conditions.  Check for this
+#      and if the problem exists use a substitute procedure
+#      "fixstrtod" (provided by Tcl) that corrects the error.
+#      Also, on Compaq's Tru64 Unix 5.0,
+#      strtod(" ") returns 0.0 instead of a failure to convert.
+#
+# Arguments:
+#      none
+#      
+# Results:
+#
+#      Might defines some of the following vars:
+#              strtod (=fixstrtod)
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_BUGGY_STRTOD], [
+    AC_CHECK_FUNC(strtod, tcl_strtod=1, tcl_strtod=0)
+    if test "$tcl_strtod" = 1; then
+       AC_CACHE_CHECK([for Solaris2.4/Tru64 strtod bugs], tcl_cv_strtod_buggy,[
+           AC_TRY_RUN([
+               extern double strtod();
+               int main() {
+                   char *infString="Inf", *nanString="NaN", *spaceString=" ";
+                   char *term;
+                   double value;
+                   value = strtod(infString, &term);
+                   if ((term != infString) && (term[-1] == 0)) {
+                       exit(1);
+                   }
+                   value = strtod(nanString, &term);
+                   if ((term != nanString) && (term[-1] == 0)) {
+                       exit(1);
+                   }
+                   value = strtod(spaceString, &term);
+                   if (term == (spaceString+1)) {
+                       exit(1);
+                   }
+                   exit(0);
+               }], tcl_cv_strtod_buggy=ok, tcl_cv_strtod_buggy=buggy,
+                   tcl_cv_strtod_buggy=buggy)])
+       if test "$tcl_cv_strtod_buggy" = buggy; then
+           LIBOBJS="$LIBOBJS fixstrtod.o"
+           AC_DEFINE(strtod, fixstrtod)
+       fi
+    fi
+])
+
+#--------------------------------------------------------------------
+# SC_TCL_LINK_LIBS
+#
+#      Search for the libraries needed to link the Tcl shell.
+#      Things like the math library (-lm) and socket stuff (-lsocket vs.
+#      -lnsl) are dealt with here.
+#
+# Arguments:
+#      Requires the following vars to be set in the Makefile:
+#              DL_LIBS
+#              LIBS
+#              MATH_LIBS
+#      
+# Results:
+#
+#      Subst's the following var:
+#              TCL_LIBS
+#              MATH_LIBS
+#
+#      Might append to the following vars:
+#              LIBS
+#
+#      Might define the following vars:
+#              HAVE_NET_ERRNO_H
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_LINK_LIBS], [
+    #--------------------------------------------------------------------
+    # On a few very rare systems, all of the libm.a stuff is
+    # already in libc.a.  Set compiler flags accordingly.
+    # Also, Linux requires the "ieee" library for math to work
+    # right (and it must appear before "-lm").
+    #--------------------------------------------------------------------
+
+    AC_CHECK_FUNC(sin, MATH_LIBS="", MATH_LIBS="-lm")
+    AC_CHECK_LIB(ieee, main, [MATH_LIBS="-lieee $MATH_LIBS"])
+
+    #--------------------------------------------------------------------
+    # Interactive UNIX requires -linet instead of -lsocket, plus it
+    # needs net/errno.h to define the socket-related error codes.
+    #--------------------------------------------------------------------
+
+    AC_CHECK_LIB(inet, main, [LIBS="$LIBS -linet"])
+    AC_CHECK_HEADER(net/errno.h, [AC_DEFINE(HAVE_NET_ERRNO_H)])
+
+    #--------------------------------------------------------------------
+    #  Check for the existence of the -lsocket and -lnsl libraries.
+    #  The order here is important, so that they end up in the right
+    #  order in the command line generated by make.  Here are some
+    #  special considerations:
+    #  1. Use "connect" and "accept" to check for -lsocket, and
+    #     "gethostbyname" to check for -lnsl.
+    #  2. Use each function name only once:  can't redo a check because
+    #     autoconf caches the results of the last check and won't redo it.
+    #  3. Use -lnsl and -lsocket only if they supply procedures that
+    #     aren't already present in the normal libraries.  This is because
+    #     IRIX 5.2 has libraries, but they aren't needed and they're
+    #     bogus:  they goof up name resolution if used.
+    #  4. On some SVR4 systems, can't use -lsocket without -lnsl too.
+    #     To get around this problem, check for both libraries together
+    #     if -lsocket doesn't work by itself.
+    #--------------------------------------------------------------------
+
+    tcl_checkBoth=0
+    AC_CHECK_FUNC(connect, tcl_checkSocket=0, tcl_checkSocket=1)
+    if test "$tcl_checkSocket" = 1; then
+       AC_CHECK_FUNC(setsockopt, , [AC_CHECK_LIB(socket, setsockopt,
+           LIBS="$LIBS -lsocket", tcl_checkBoth=1)])
+    fi
+    if test "$tcl_checkBoth" = 1; then
+       tk_oldLibs=$LIBS
+       LIBS="$LIBS -lsocket -lnsl"
+       AC_CHECK_FUNC(accept, tcl_checkNsl=0, [LIBS=$tk_oldLibs])
+    fi
+    AC_CHECK_FUNC(gethostbyname, , [AC_CHECK_LIB(nsl, gethostbyname,
+           [LIBS="$LIBS -lnsl"])])
+    
+    # Don't perform the eval of the libraries here because DL_LIBS
+    # won't be set until we call SC_CONFIG_CFLAGS
+
+    TCL_LIBS='${DL_LIBS} ${LIBS} ${MATH_LIBS}'
+    AC_SUBST(TCL_LIBS)
+    AC_SUBST(MATH_LIBS)
+])
+
+#--------------------------------------------------------------------
+# SC_TCL_EARLY_FLAGS
+#
+#      Check for what flags are needed to be passed so the correct OS
+#      features are available.
+#
+# Arguments:
+#      None
+#      
+# Results:
+#
+#      Might define the following vars:
+#              _ISOC99_SOURCE
+#              _LARGEFILE64_SOURCE
+#              _LARGEFILE_SOURCE64
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_EARLY_FLAG],[
+    AC_CACHE_VAL([tcl_cv_flag_]translit($1,[A-Z],[a-z]),
+       AC_TRY_COMPILE([$2], $3, [tcl_cv_flag_]translit($1,[A-Z],[a-z])=no,
+           AC_TRY_COMPILE([[#define ]$1[ 1
+]$2], $3,
+               [tcl_cv_flag_]translit($1,[A-Z],[a-z])=yes,
+               [tcl_cv_flag_]translit($1,[A-Z],[a-z])=no)))
+    if test ["x${tcl_cv_flag_]translit($1,[A-Z],[a-z])[}" = "xyes"] ; then
+       AC_DEFINE($1)
+       tcl_flags="$tcl_flags $1"
+    fi
+])
+
+AC_DEFUN([SC_TCL_EARLY_FLAGS],[
+    AC_MSG_CHECKING([for required early compiler flags])
+    tcl_flags=""
+    SC_TCL_EARLY_FLAG(_ISOC99_SOURCE,[#include <stdlib.h>],
+       [char *p = (char *)strtoll; char *q = (char *)strtoull;])
+    SC_TCL_EARLY_FLAG(_LARGEFILE64_SOURCE,[#include <sys/stat.h>],
+       [struct stat64 buf; int i = stat64("/", &buf);])
+    SC_TCL_EARLY_FLAG(_LARGEFILE_SOURCE64,[#include <sys/stat.h>],
+       [char *p = (char *)open64;])
+    if test "x${tcl_flags}" = "x" ; then
+       AC_MSG_RESULT([none])
+    else
+       AC_MSG_RESULT([${tcl_flags}])
+    fi
+])
+
+#--------------------------------------------------------------------
+# SC_TCL_64BIT_FLAGS
+#
+#      Check for what is defined in the way of 64-bit features.
+#
+# Arguments:
+#      None
+#      
+# Results:
+#
+#      Might define the following vars:
+#              TCL_WIDE_INT_IS_LONG
+#              TCL_WIDE_INT_TYPE
+#              HAVE_STRUCT_DIRENT64
+#              HAVE_STRUCT_STAT64
+#              HAVE_TYPE_OFF64_T
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_64BIT_FLAGS], [
+    AC_MSG_CHECKING([for 64-bit integer type])
+    AC_CACHE_VAL(tcl_cv_type_64bit,[
+       tcl_cv_type_64bit=none
+       # See if the compiler knows natively about __int64
+       AC_TRY_COMPILE(,[__int64 value = (__int64) 0;],
+           tcl_type_64bit=__int64, tcl_type_64bit="long long")
+       # See if we should use long anyway  Note that we substitute in the
+       # type that is our current guess for a 64-bit type inside this check
+       # program, so it should be modified only carefully...
+        AC_TRY_COMPILE(,[switch (0) { 
+            case 1: case (sizeof(]${tcl_type_64bit}[)==sizeof(long)): ; 
+        }],tcl_cv_type_64bit=${tcl_type_64bit})])
+    if test "${tcl_cv_type_64bit}" = none ; then
+       AC_DEFINE(TCL_WIDE_INT_IS_LONG)
+       AC_MSG_RESULT([using long])
+    else
+       AC_DEFINE_UNQUOTED(TCL_WIDE_INT_TYPE,${tcl_cv_type_64bit})
+       AC_MSG_RESULT([${tcl_cv_type_64bit}])
+
+       # Now check for auxiliary declarations
+       AC_CACHE_CHECK([for struct dirent64], tcl_cv_struct_dirent64,[
+           AC_TRY_COMPILE([#include <sys/types.h>
+#include <sys/dirent.h>],[struct dirent64 p;],
+               tcl_cv_struct_dirent64=yes,tcl_cv_struct_dirent64=no)])
+       if test "x${tcl_cv_struct_dirent64}" = "xyes" ; then
+           AC_DEFINE(HAVE_STRUCT_DIRENT64)
+       fi
+
+       AC_CACHE_CHECK([for struct stat64], tcl_cv_struct_stat64,[
+           AC_TRY_COMPILE([#include <sys/stat.h>],[struct stat64 p;
+],
+               tcl_cv_struct_stat64=yes,tcl_cv_struct_stat64=no)])
+       if test "x${tcl_cv_struct_stat64}" = "xyes" ; then
+           AC_DEFINE(HAVE_STRUCT_STAT64)
+       fi
+
+       AC_CHECK_FUNCS(open64 lseek64)
+       AC_MSG_CHECKING([for off64_t])
+       AC_CACHE_VAL(tcl_cv_type_off64_t,[
+           AC_TRY_COMPILE([#include <sys/types.h>],[off64_t offset;
+],
+               tcl_cv_type_off64_t=yes,tcl_cv_type_off64_t=no)])
+       dnl Define HAVE_TYPE_OFF64_T only when the off64_t type and the
+       dnl functions lseek64 and open64 are defined.
+       if test "x${tcl_cv_type_off64_t}" = "xyes" && \
+               test "x${ac_cv_func_lseek64}" = "xyes" && \
+               test "x${ac_cv_func_open64}" = "xyes" ; then
+           AC_DEFINE(HAVE_TYPE_OFF64_T)
+           AC_MSG_RESULT([yes])
+       else
+           AC_MSG_RESULT([no])
+       fi
+    fi
+])
+
+#--------------------------------------------------------------------
+# SC_TCL_GETHOSTBYADDR_R
+#
+#      Check if we have MT-safe variant of gethostbyaddr().
+#
+# Arguments:
+#      None
+#      
+# Results:
+#
+#      Might define the following vars:
+#              HAVE_GETHOSTBYADDR_R
+#              HAVE_GETHOSTBYADDR_R_7
+#              HAVE_GETHOSTBYADDR_R_8
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_GETHOSTBYADDR_R], [AC_CHECK_FUNC(gethostbyaddr_r, [
+    AC_CACHE_CHECK([for gethostbyaddr_r with 7 args], tcl_cv_api_gethostbyaddr_r_7, [
+    AC_TRY_COMPILE([
+       #include <netdb.h>
+    ], [
+       char *addr;
+       int length;
+       int type;
+       struct hostent *result;
+       char buffer[2048];
+       int buflen = 2048;
+       int h_errnop;
+
+       (void) gethostbyaddr_r(addr, length, type, result, buffer, buflen,
+                              &h_errnop);
+    ], tcl_cv_api_gethostbyaddr_r_7=yes, tcl_cv_api_gethostbyaddr_r_7=no)])
+    tcl_ok=$tcl_cv_api_gethostbyaddr_r_7
+    if test "$tcl_ok" = yes; then
+       AC_DEFINE(HAVE_GETHOSTBYADDR_R_7)
+    else
+       AC_CACHE_CHECK([for gethostbyaddr_r with 8 args], tcl_cv_api_gethostbyaddr_r_8, [
+       AC_TRY_COMPILE([
+           #include <netdb.h>
+       ], [
+           char *addr;
+           int length;
+           int type;
+           struct hostent *result, *resultp;
+           char buffer[2048];
+           int buflen = 2048;
+           int h_errnop;
+
+           (void) gethostbyaddr_r(addr, length, type, result, buffer, buflen,
+                                  &resultp, &h_errnop);
+       ], tcl_cv_api_gethostbyaddr_r_8=yes, tcl_cv_api_gethostbyaddr_r_8=no)])
+       tcl_ok=$tcl_cv_api_gethostbyaddr_r_8
+       if test "$tcl_ok" = yes; then
+           AC_DEFINE(HAVE_GETHOSTBYADDR_R_8)
+       fi
+    fi
+    if test "$tcl_ok" = yes; then
+       AC_DEFINE(HAVE_GETHOSTBYADDR_R)
+    fi
+])])
+
+#--------------------------------------------------------------------
+# SC_TCL_GETHOSTBYNAME_R
+#
+#      Check to see what variant of gethostbyname_r() we have.
+#      Based on David Arnold's example from the comp.programming.threads
+#      FAQ Q213
+#
+# Arguments:
+#      None
+#      
+# Results:
+#
+#      Might define the following vars:
+#              HAVE_GETHOSTBYADDR_R
+#              HAVE_GETHOSTBYADDR_R_3
+#              HAVE_GETHOSTBYADDR_R_5
+#              HAVE_GETHOSTBYADDR_R_6
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_GETHOSTBYNAME_R], [AC_CHECK_FUNC(gethostbyname_r, [
+    AC_CACHE_CHECK([for gethostbyname_r with 6 args], tcl_cv_api_gethostbyname_r_6, [
+    AC_TRY_COMPILE([
+       #include <netdb.h>
+    ], [
+       char *name;
+       struct hostent *he, *res;
+       char buffer[2048];
+       int buflen = 2048;
+       int h_errnop;
+
+       (void) gethostbyname_r(name, he, buffer, buflen, &res, &h_errnop);
+    ], tcl_cv_api_gethostbyname_r_6=yes, tcl_cv_api_gethostbyname_r_6=no)])
+    tcl_ok=$tcl_cv_api_gethostbyname_r_6
+    if test "$tcl_ok" = yes; then
+       AC_DEFINE(HAVE_GETHOSTBYNAME_R_6)
+    else
+       AC_CACHE_CHECK([for gethostbyname_r with 5 args], tcl_cv_api_gethostbyname_r_5, [
+       AC_TRY_COMPILE([
+           #include <netdb.h>
+       ], [
+           char *name;
+           struct hostent *he;
+           char buffer[2048];
+           int buflen = 2048;
+           int h_errnop;
+
+           (void) gethostbyname_r(name, he, buffer, buflen, &h_errnop);
+       ], tcl_cv_api_gethostbyname_r_5=yes, tcl_cv_api_gethostbyname_r_5=no)])
+       tcl_ok=$tcl_cv_api_gethostbyname_r_5
+       if test "$tcl_ok" = yes; then
+           AC_DEFINE(HAVE_GETHOSTBYNAME_R_5)
+       else
+           AC_CACHE_CHECK([for gethostbyname_r with 3 args], tcl_cv_api_gethostbyname_r_3, [
+           AC_TRY_COMPILE([
+               #include <netdb.h>
+           ], [
+               char *name;
+               struct hostent *he;
+               struct hostent_data data;
+
+               (void) gethostbyname_r(name, he, &data);
+           ], tcl_cv_api_gethostbyname_r_3=yes, tcl_cv_api_gethostbyname_r_3=no)])
+           tcl_ok=$tcl_cv_api_gethostbyname_r_3
+           if test "$tcl_ok" = yes; then
+               AC_DEFINE(HAVE_GETHOSTBYNAME_R_3)
+           fi
+       fi
+    fi
+    if test "$tcl_ok" = yes; then
+       AC_DEFINE(HAVE_GETHOSTBYNAME_R)
+    fi
+])])
+
+#--------------------------------------------------------------------
+# SC_TCL_GETPWUID_R
+#
+#      Check if we have MT-safe variant of getpwuid() and if yes,
+#      which one exactly.
+#
+# Arguments:
+#      None
+#      
+# Results:
+#
+#      Might define the following vars:
+#              HAVE_GETPWUID_R
+#              HAVE_GETPWUID_R_4
+#              HAVE_GETPWUID_R_5
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_GETPWUID_R], [AC_CHECK_FUNC(getpwuid_r, [
+    AC_CACHE_CHECK([for getpwuid_r with 5 args], tcl_cv_api_getpwuid_r_5, [
+    AC_TRY_COMPILE([
+       #include <sys/types.h>
+       #include <pwd.h>
+    ], [
+       uid_t uid;
+       struct passwd pw, *pwp;
+       char buf[512];
+       int buflen = 512;
+
+       (void) getpwuid_r(uid, &pw, buf, buflen, &pwp);
+    ], tcl_cv_api_getpwuid_r_5=yes, tcl_cv_api_getpwuid_r_5=no)])
+    tcl_ok=$tcl_cv_api_getpwuid_r_5
+    if test "$tcl_ok" = yes; then
+       AC_DEFINE(HAVE_GETPWUID_R_5)
+    else
+       AC_CACHE_CHECK([for getpwuid_r with 4 args], tcl_cv_api_getpwuid_r_4, [
+       AC_TRY_COMPILE([
+           #include <sys/types.h>
+           #include <pwd.h>
+       ], [
+           uid_t uid;
+           struct passwd pw;
+           char buf[512];
+           int buflen = 512;
+
+           (void)getpwnam_r(uid, &pw, buf, buflen);
+       ], tcl_cv_api_getpwuid_r_4=yes, tcl_cv_api_getpwuid_r_4=no)])
+       tcl_ok=$tcl_cv_api_getpwuid_r_4
+       if test "$tcl_ok" = yes; then
+           AC_DEFINE(HAVE_GETPWUID_R_4)
+       fi
+    fi
+    if test "$tcl_ok" = yes; then
+       AC_DEFINE(HAVE_GETPWUID_R)
+    fi
+])])
+
+#--------------------------------------------------------------------
+# SC_TCL_GETPWNAM_R
+#
+#      Check if we have MT-safe variant of getpwnam() and if yes,
+#      which one exactly.
+#
+# Arguments:
+#      None
+#      
+# Results:
+#
+#      Might define the following vars:
+#              HAVE_GETPWNAM_R
+#              HAVE_GETPWNAM_R_4
+#              HAVE_GETPWNAM_R_5
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_GETPWNAM_R], [AC_CHECK_FUNC(getpwnam_r, [
+    AC_CACHE_CHECK([for getpwnam_r with 5 args], tcl_cv_api_getpwnam_r_5, [
+    AC_TRY_COMPILE([
+       #include <sys/types.h>
+       #include <pwd.h>
+    ], [
+       char *name;
+       struct passwd pw, *pwp;
+       char buf[512];
+       int buflen = 512;
+
+       (void) getpwnam_r(name, &pw, buf, buflen, &pwp);
+    ], tcl_cv_api_getpwnam_r_5=yes, tcl_cv_api_getpwnam_r_5=no)])
+    tcl_ok=$tcl_cv_api_getpwnam_r_5
+    if test "$tcl_ok" = yes; then
+       AC_DEFINE(HAVE_GETPWNAM_R_5)
+    else
+       AC_CACHE_CHECK([for getpwnam_r with 4 args], tcl_cv_api_getpwnam_r_4, [
+       AC_TRY_COMPILE([
+           #include <sys/types.h>
+           #include <pwd.h>
+       ], [
+           char *name;
+           struct passwd pw;
+           char buf[512];
+           int buflen = 512;
+
+           (void)getpwnam_r(name, &pw, buf, buflen);
+       ], tcl_cv_api_getpwnam_r_4=yes, tcl_cv_api_getpwnam_r_4=no)])
+       tcl_ok=$tcl_cv_api_getpwnam_r_4
+       if test "$tcl_ok" = yes; then
+           AC_DEFINE(HAVE_GETPWNAM_R_4)
+       fi
+    fi
+    if test "$tcl_ok" = yes; then
+       AC_DEFINE(HAVE_GETPWNAM_R)
+    fi
+])])
+
+#--------------------------------------------------------------------
+# SC_TCL_GETGRGID_R
+#
+#      Check if we have MT-safe variant of getgrgid() and if yes,
+#      which one exactly.
+#
+# Arguments:
+#      None
+#      
+# Results:
+#
+#      Might define the following vars:
+#              HAVE_GETGRGID_R
+#              HAVE_GETGRGID_R_4
+#              HAVE_GETGRGID_R_5
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_GETGRGID_R], [AC_CHECK_FUNC(getgrgid_r, [
+    AC_CACHE_CHECK([for getgrgid_r with 5 args], tcl_cv_api_getgrgid_r_5, [
+    AC_TRY_COMPILE([
+       #include <sys/types.h>
+       #include <grp.h>
+    ], [
+       gid_t gid;
+       struct group gr, *grp;
+       char buf[512];
+       int buflen = 512;
+
+       (void) getgrgid_r(gid, &gr, buf, buflen, &grp);
+    ], tcl_cv_api_getgrgid_r_5=yes, tcl_cv_api_getgrgid_r_5=no)])
+    tcl_ok=$tcl_cv_api_getgrgid_r_5
+    if test "$tcl_ok" = yes; then
+       AC_DEFINE(HAVE_GETGRGID_R_5)
+    else
+       AC_CACHE_CHECK([for getgrgid_r with 4 args], tcl_cv_api_getgrgid_r_4, [
+       AC_TRY_COMPILE([
+           #include <sys/types.h>
+           #include <grp.h>
+       ], [
+           gid_t gid;
+           struct group gr;
+           char buf[512];
+           int buflen = 512;
+
+           (void)getgrgid_r(gid, &gr, buf, buflen);
+       ], tcl_cv_api_getgrgid_r_4=yes, tcl_cv_api_getgrgid_r_4=no)])
+       tcl_ok=$tcl_cv_api_getgrgid_r_4
+       if test "$tcl_ok" = yes; then
+           AC_DEFINE(HAVE_GETGRGID_R_4)
+       fi
+    fi
+    if test "$tcl_ok" = yes; then
+       AC_DEFINE(HAVE_GETGRGID_R)
+    fi
+])])
+
+#--------------------------------------------------------------------
+# SC_TCL_GETGRNAM_R
+#
+#      Check if we have MT-safe variant of getgrnam() and if yes,
+#      which one exactly.
+#
+# Arguments:
+#      None
+#      
+# Results:
+#
+#      Might define the following vars:
+#              HAVE_GETGRNAM_R
+#              HAVE_GETGRNAM_R_4
+#              HAVE_GETGRNAM_R_5
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_GETGRNAM_R], [AC_CHECK_FUNC(getgrnam_r, [
+    AC_CACHE_CHECK([for getgrnam_r with 5 args], tcl_cv_api_getgrnam_r_5, [
+    AC_TRY_COMPILE([
+       #include <sys/types.h>
+       #include <grp.h>
+    ], [
+       char *name;
+       struct group gr, *grp;
+       char buf[512];
+       int buflen = 512;
+
+       (void) getgrnam_r(name, &gr, buf, buflen, &grp);
+    ], tcl_cv_api_getgrnam_r_5=yes, tcl_cv_api_getgrnam_r_5=no)])
+    tcl_ok=$tcl_cv_api_getgrnam_r_5
+    if test "$tcl_ok" = yes; then
+       AC_DEFINE(HAVE_GETGRNAM_R_5)
+    else
+       AC_CACHE_CHECK([for getgrnam_r with 4 args], tcl_cv_api_getgrnam_r_4, [
+       AC_TRY_COMPILE([
+           #include <sys/types.h>
+           #include <grp.h>
+       ], [
+           char *name;
+           struct group gr;
+           char buf[512];
+           int buflen = 512;
+
+           (void)getgrnam_r(name, &gr, buf, buflen);
+       ], tcl_cv_api_getgrnam_r_4=yes, tcl_cv_api_getgrnam_r_4=no)])
+       tcl_ok=$tcl_cv_api_getgrnam_r_4
+       if test "$tcl_ok" = yes; then
+           AC_DEFINE(HAVE_GETGRNAM_R_4)
+       fi
+    fi
+    if test "$tcl_ok" = yes; then
+       AC_DEFINE(HAVE_GETGRNAM_R)
+    fi
+])])
+
+#--------------------------------------------------------------------
+# SC_CONFIG_COMMANDS_PRE(CMDS)
+#
+#      Replacement for autoconf 2.5x AC_COMMANDS_PRE:
+#              Commands to run right before config.status is
+#              created. Accumulates.
+#
+#      Requires presence of SC_OUTPUT_COMMANDS_PRE at the end
+#      of configure.in (right before AC_OUTPUT).
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_CONFIG_COMMANDS_PRE], [
+    define([SC_OUTPUT_COMMANDS_PRE], defn([SC_OUTPUT_COMMANDS_PRE])[$1
+])])
+AC_DEFUN([SC_OUTPUT_COMMANDS_PRE])
+