dnl Process this file with autoconf to produce a configure script
-AC_PREREQ(2.12.1)
+AC_PREREQ(2.13)
AC_INIT(pexecute.c)
dnl We use these options to decide which functions to include.
fi
AC_CONFIG_AUX_DIR($libiberty_topdir)
+dnl Very limited version of automake's enable-maintainer-mode
+
+AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
+ dnl maintainer-mode is disabled by default
+ AC_ARG_ENABLE(maintainer-mode,
+[ --enable-maintainer-mode
+ enable make rules and dependencies not useful
+ (and sometimes confusing) to the casual installer],
+ maintainer_mode=$enableval,
+ maintainer_mode=no)
+
+AC_MSG_RESULT($maintainer_mode)
+
+if test "$maintainer_mode" = "yes"; then
+ MAINT=''
+ NOTMAINT='#'
+else
+ MAINT='#'
+ NOTMAINT=''
+fi
+AC_SUBST(MAINT)dnl
+AC_SUBST(NOTMAINT)dnl
+
+# Do we have a single-tree copy of texinfo? Even if we do, we can't
+# rely on it - libiberty is built before texinfo.
+AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, )
+if test "x$MAKEINFO" = "x"; then
+ MAKEINFO="@echo makeinfo missing; true"
+ BUILD_INFO=
+else
+ BUILD_INFO=info
+ case x"`$MAKEINFO --version | grep 'GNU texinfo'`" in
+ x*\ [[1-3]].* )
+ MAKEINFO="@echo $MAKEINFO is too old, 4.0 or newer required; true"
+ BUILD_INFO=
+ AC_MSG_WARN([
+*** Makeinfo is too old. Info documentation will not be built.])
+ ;;
+ esac
+fi
+AC_SUBST(MAKEINFO)
+AC_SUBST(BUILD_INFO)
+
+AC_CHECK_PROG(PERL, perl, perl, )
+if test x"$PERL" = x""; then
+ HAVE_PERL='#'
+else
+ HAVE_PERL=''
+fi
+AC_SUBST(HAVE_PERL)
+
AC_CANONICAL_HOST
dnl When we start using automake:
AC_CHECK_TOOL(AR, ar)
AC_CHECK_TOOL(RANLIB, ranlib, :)
-# FIXME: We temporarily define our own version of AC_PROG_CC. This is
-# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
-# are probably using a cross compiler, which will not be able to fully
-# link an executable. This should really be fixed in autoconf
-# itself.
-
-AC_DEFUN(LIB_AC_PROG_CC,
-[AC_BEFORE([$0], [AC_PROG_CPP])dnl
-AC_PROVIDE([AC_PROG_CC])
-AC_CHECK_PROG(CC, gcc, gcc)
-if test -z "$CC"; then
- AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
- test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
-fi
-
-AC_PROG_CC_GNU
-
-if test $ac_cv_prog_gcc = yes; then
- GCC=yes
-dnl Check whether -g works, even if CFLAGS is set, in case the package
-dnl plays around with CFLAGS (such as to build both debugging and
-dnl normal versions of a library), tasteless as that idea is.
- ac_test_CFLAGS="${CFLAGS+set}"
- ac_save_CFLAGS="$CFLAGS"
- CFLAGS=
- AC_PROG_CC_G
- if test "$ac_test_CFLAGS" = set; then
- CFLAGS="$ac_save_CFLAGS"
- elif test $ac_cv_prog_cc_g = yes; then
- CFLAGS="-g -O2"
- else
- CFLAGS="-O2"
- fi
-else
- GCC=
- test "${CFLAGS+set}" = set || CFLAGS="-g"
-fi
-])
-
LIB_AC_PROG_CC
AC_ISC_POSIX
+AC_C_CONST
+AC_C_INLINE
dnl When we start using libtool:
dnl Default to a non shared library. This may be overridden by the
# It's OK to check for header files. Although the compiler may not be
# able to link anything, it had better be able to at least compile
# something.
-AC_CHECK_HEADERS(sys/file.h sys/param.h stdlib.h string.h unistd.h strings.h sys/time.h sys/resource.h)
+AC_CHECK_HEADERS(sys/file.h sys/param.h limits.h stdlib.h string.h unistd.h strings.h sys/time.h time.h sys/resource.h sys/stat.h sys/mman.h fcntl.h alloca.h)
AC_HEADER_SYS_WAIT
+AC_HEADER_TIME
+
+libiberty_AC_DECLARE_ERRNO
+
+AC_CHECK_TYPE(uintptr_t, unsigned long)
+
+if test $ac_cv_type_uintptr_t = yes
+then
+ AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
+fi
# This is the list of functions which libiberty will provide if they
# are not available on the host.
funcs="$funcs basename"
funcs="$funcs bcmp"
funcs="$funcs bcopy"
+funcs="$funcs bsearch"
funcs="$funcs bzero"
funcs="$funcs calloc"
funcs="$funcs clock"
+funcs="$funcs ffs"
funcs="$funcs getcwd"
funcs="$funcs getpagesize"
funcs="$funcs index"
vars="sys_errlist sys_nerr sys_siglist"
-checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk"
+checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday"
# These are neither executed nor required, but they help keep
# autoheader happy without adding a bunch of text to acconfig.h.
if test "x" = "y"; then
- AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bzero calloc clock getcwd)
- AC_CHECK_FUNCS(getpagesize index insque mkstemps memchr memcmp memcpy memmove)
- AC_CHECK_FUNCS(memset putenv random rename rindex sigsetmask strcasecmp)
- AC_CHECK_FUNCS(setenv strchr strdup strncasecmp strrchr strstr strtod strtol)
- AC_CHECK_FUNCS(strtoul tmpnam vasprintf vfprintf vprintf vsprintf waitpid)
- AC_DEFINE(HAVE_SYS_ERRLIST)
- AC_DEFINE(HAVE_SYS_NERR)
- AC_DEFINE(HAVE_SYS_SIGLIST)
- AC_CHECK_FUNCS(getrusage on_exit psignal strerror strsignal sysconf times)
- AC_CHECK_FUNCS(sbrk)
+ AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock)
+ AC_CHECK_FUNCS(getcwd getpagesize index insque mkstemps memchr memcmp memcpy)
+ AC_CHECK_FUNCS(memmove memset putenv random rename rindex sigsetmask)
+ AC_CHECK_FUNCS(strcasecmp setenv strchr strdup strncasecmp strrchr strstr)
+ AC_CHECK_FUNCS(strtod strtol strtoul tmpnam vasprintf vfprintf vprintf)
+ AC_CHECK_FUNCS(vsprintf waitpid getrusage on_exit psignal strerror strsignal)
+ AC_CHECK_FUNCS(sysconf times sbrk gettimeofday ffs)
+ AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
+ AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
+ AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
fi
# For each of these functions, if the host does not provide the
# function we want to put FN.o in LIBOBJS, and if the host does
-# provide the function, we want to define HAVE_FN in config.h. Also,
-# if the host does not provide alloca, we set ALLOCA to alloca.o
+# provide the function, we want to define HAVE_FN in config.h.
setobjs=
CHECK=
+target_header_dir=
if test -n "${with_target_subdir}"; then
# We are being configured as a target library. AC_REPLACE_FUNCS
# newlib provide and which ones we will be expected to provide.
if test "x${with_newlib}" = "xyes"; then
- ALLOCA="alloca.o"
LIBOBJS="asprintf.o basename.o insque.o random.o strdup.o vasprintf.o"
for f in $funcs; do
# dont have to check them here.
# Of the functions in $checkfuncs, newlib only has strerror.
- AC_DEFINE(HAVE_STRERROR)
+ AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR)
setobjs=yes
fi
+ # We may wish to install the target headers somewhere.
+ AC_ARG_ENABLE(install-libiberty,
+ [ --enable-install-libiberty Install headers for end users],
+ enable_install_libiberty=$enableval,
+ enable_install_libiberty=no)dnl
+
+ # Option parsed, now set things appropriately.
+ case x"$enable_install_libiberty" in
+ xyes|x)
+ target_header_dir=libiberty
+ ;;
+ xno)
+ target_header_dir=
+ ;;
+ *)
+ # This could be sanity-checked in various ways...
+ target_header_dir="${enable_install_libiberty}"
+ ;;
+ esac
+
+
else
# Not a target library, so we set things up to run the test suite.
fi
AC_SUBST(CHECK)
+AC_SUBST(target_header_dir)
+
+case "${host}" in
+ *-*-cygwin* | *-*-mingw*)
+ AC_DEFINE_NOAUTOHEADER(HAVE_SYS_ERRLIST)
+ AC_DEFINE_NOAUTOHEADER(HAVE_SYS_NERR)
+ ;;
+esac
if test -z "${setobjs}"; then
case "${host}" in
# don't have to check them here.
# Of the functions in $checkfuncs, VxWorks only has strerror.
- AC_DEFINE(HAVE_STRERROR)
+ AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR)
setobjs=yes
;;
# provides from our shell variables, so that they appear to be
# missing.
- funcs="`echo $funcs | sed -e 's/random//'`"
- LIBOBJS="$LIBOBJS random.o"
- vars="`echo $vars | sed -e 's/sys_siglist//'`"
- checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`"
+ # DJ - only if we're *building* cygwin, not just building *with* cygwin
+
+ if test -n "${with_target_subdir}"
+ then
+ funcs="`echo $funcs | sed -e 's/random//'`"
+ LIBOBJS="$LIBOBJS random.o"
+ vars="`echo $vars | sed -e 's/sys_siglist//'`"
+ checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`"
+ fi
;;
*-*-mingw32*)
# Under mingw32, sys_nerr and sys_errlist exist, but they are
# macros, so the test below won't find them.
- vars="`echo $vars | sed -e 's/sys_nerr//' -e 's/sys_errlist//'`"
- AC_DEFINE(HAVE_SYS_NERR)
- AC_DEFINE(HAVE_SYS_ERRLIST)
+ libiberty_cv_var_sys_nerr=yes
+ libiberty_cv_var_sys_errlist=yes
;;
*-*-uwin*)
# can hang configure; on other versions, vfork exists just as a stub.
# FIXME: This should be removed once vfork in uwin's runtime is fixed.
ac_cv_func_vfork_works=no
+ # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
+ # macros (actually, these are imported from a DLL, but the end effect
+ # is the same), so the test below won't find them.
+ libiberty_cv_var_sys_nerr=yes
+ libiberty_cv_var_sys_errlist=yes
+ ;;
+
+ *-*-*vms*)
+ # Under VMS, vfork works very different than on Unix. The standard test
+ # won't work, and it isn't easily adaptable. It makes more sense to
+ # just force it.
+ ac_cv_func_vfork_works=yes
;;
esac
# tests. This will only work if the compiler works.
AC_PROG_CC_WORKS
AC_REPLACE_FUNCS($funcs)
-
- case "${host}" in
- *-*-interix)
- # On Interix, it wrongly concludes that the MSVC compiler supports alloca.
- # (MSVC does on Win32, not on Interix.)
- # This should be temporary.
-
- ac_cv_header_alloca_h=no
- ac_cv_func_alloca_works=no
- ALLOCA=alloca.o
- cat >> confdefs.h <<\EOF
-#define C_ALLOCA 1
-EOF
- cat >> confdefs.h <<EOF
-#define STACK_DIRECTION -1
-EOF
- ;;
- *)
- AC_FUNC_ALLOCA
- ;;
- esac
-
+ libiberty_AC_FUNC_C_ALLOCA
AC_FUNC_VFORK
if test $ac_cv_func_vfork_works = no; then
LIBOBJS="$LIBOBJS vfork.o"
fi
+ # We only need _doprnt if we might use it to implement v*printf.
+ if test $ac_cv_func_vprintf != yes \
+ || test $ac_cv_func_vfprintf != yes \
+ || test $ac_cv_func_vsprintf != yes; then
+ AC_REPLACE_FUNCS(_doprnt)
+ else
+ AC_CHECK_FUNCS(_doprnt)
+ fi
+
for v in $vars; do
AC_MSG_CHECKING([for $v])
AC_CACHE_VAL(libiberty_cv_var_$v,
- [AC_TRY_LINK([int *p;], [extern int $v; p = &$v;],
+ [AC_TRY_LINK([int *p;], [extern int $v []; p = &$v;],
[eval "libiberty_cv_var_$v=yes"],
[eval "libiberty_cv_var_$v=no"])])
if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
AC_CHECK_FUNCS($checkfuncs)
fi
+libiberty_AC_FUNC_STRNCMP
+
# Install a library built with a cross compiler in $(tooldir) rather
# than $(libdir).
if test -z "${with_cross_host}"; then
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