X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=libf2c%2Fconfigure.in;h=ce3dcdc5092e20b137b3c1bc895d656db4c7c9c2;hb=19bec0b94ee74b051d7f21c33e47b6b33bf1e77b;hp=3320f483b8d12674afd3d1ab6afb99e6f9a5494a;hpb=084a724c9ac96e3b1fde301e1ba1820b8bc74674;p=pf3gnuchains%2Fgcc-fork.git

diff --git a/libf2c/configure.in b/libf2c/configure.in
index 3320f483b8d..ce3dcdc5092 100644
--- a/libf2c/configure.in
+++ b/libf2c/configure.in
@@ -1,5 +1,5 @@
 # Process this file with autoconf to produce a configure script.
-#   Copyright (C) 1995, 1997 Free Software Foundation, Inc.
+#   Copyright (C) 1995, 1997, 1998, 1999 Free Software Foundation, Inc.
 #   Contributed by Dave Love (d.love@dl.ac.uk).
 #
 #This file is part of GNU Fortran.
@@ -19,47 +19,88 @@
 #the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 #02111-1307, USA.
 
+AC_PREREQ(2.13)
 AC_INIT(libF77/Version.c)
 
-AC_REVISION(1.10)
-
-dnl AC_C_CROSS
-dnl Gives misleading `(cached)' message from the check.
-if test "$CROSS";then
-  if test "$CC_FOR_TARGET"; then
-    CC="$CC_FOR_TARGET"
+if test "${srcdir}" = "."  ; then
+  if test "${with_target_subdir}" != "." ; then
+    topsrcdir=${with_multisrctop}../..
   else
-    CC="../../xgcc -B../../xgcc/"
+    topsrcdir=${with_multisrctop}..
   fi
-  ac_cv_c_cross=yes
 else
-  dnl Checks for programs.
-  # For g77 we'll set CC to point at the built gcc, but this will get it into
-  # the makefiles
-  AC_PROG_CC
-  ac_cv_c_cross=no
+  topsrcdir=${srcdir}/..
+fi
+dnl This is needed for a multilibbed build in the source tree so
+dnl that install-sh and config.sub get found.
+AC_CONFIG_AUX_DIR($topsrcdir)
+
+# If the language specific compiler does not exist, but the "gcc" directory 
+# does, we do not build anything. Note, $r is set by the top-level Makefile.
+# Note that when we look for the compiler, we search both with and without
+# extension to handle cross and canadian cross builds. 
+compiler_name=f771
+rm -f skip-this-dir
+AC_MSG_CHECKING(if compiler $compiler_name has been built)
+AC_CACHE_VAL(g77_cv_compiler_exists,
+[g77_cv_compiler_exists=yes
+if test -n "$r"; then
+  if test -d "$r"/gcc; then
+    if test -f "$r"/gcc/$compiler_name \
+       || test -f "$r"/gcc/$compiler_name.exe; then
+      true
+    else
+      g77_cv_compiler_exists=no
+      echo "rm -f config.cache config.log multilib.out" > skip-this-dir
+    fi
+  fi
+fi
+])
+AC_MSG_RESULT($g77_cv_compiler_exists)
+if test x$g77_cv_compiler_exists = xno
+then
+  rm -f Makefile conftest* confdefs* core
+  exit 0
 fi
 
+dnl Checks for programs.
+
+dnl FIXME AC_PROG_CC wants CC to be able to link things, but it may
+dnl not be able to.
+define([AC_PROG_CC_WORKS],[])
+
+# We need AC_EXEEXT to keep automake happy in cygnus mode.  However,
+# at least currently, we never actually build a program, so we never
+# need to use $(EXEEXT).  Moreover, the test for EXEEXT normally
+# fails, because we are probably configuring with a cross compiler
+# which cant create executables.  So we include AC_EXEEXT to keep
+# automake happy, but we dont execute it, since we dont care about
+# the result.
+if false; then
+  # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
+  # to nothing, so nothing would remain between `then' and `fi' if it
+  # were not for the `:' below.
+  :
+  AC_EXEEXT
+fi
+
+# For g77 we'll set CC to point at the built gcc, but this will get it into
+# the makefiles
+
+AC_PROG_CC
+AM_PROG_LIBTOOL
+
 dnl These should be inherited in the recursive make, but ensure they are
 dnl defined:
 test "$AR" || AR=ar
 AC_SUBST(AR)
 if test "$RANLIB"; then :
   AC_SUBST(RANLIB)
-dnl Make sure that RANLIB_TEST is set also.
-  if test -z "$RANLIB_TEST"; then
-    RANLIB_TEST=true
-  fi
 else
-  RANLIB_TEST=true
   AC_PROG_RANLIB
 fi
-AC_SUBST(RANLIB_TEST)
-
-dnl not needed for g77?
-dnl AC_PROG_MAKE_SET
-
-dnl Checks for libraries.
+AC_PROG_INSTALL
+AC_PROG_MAKE_SET
 
 dnl Checks for header files.
 # Sanity check for the cross-compilation case:
@@ -70,334 +111,67 @@ including headers and, preferably, the library, before you can configure
 the G77 runtime system.  If necessary, install gcc now with \`LANGUAGES=c',
 then the target library, then build with \`LANGUAGES=f77'.])])
 
-AC_HEADER_STDC
-dnl We could do this if we didn't know we were using gcc
-dnl AC_MSG_CHECKING(for prototype-savvy compiler)
-dnl AC_CACHE_VAL(g77_cv_sys_proto,                
-dnl   [AC_TRY_LINK(,                             
-dnl dnl looks screwy because TRY_LINK expects a function body
-dnl    [return 0;} int foo (int * bar) {],       
-dnl    g77_cv_sys_proto=yes,                      
-dnl    [g77_cv_sys_proto=no                       
-dnl     AC_DEFINE(KR_headers)])])                
-dnl AC_MSG_RESULT($g77_cv_sys_proto)              
-
-dnl for U77
-dnl AC_CHECK_HEADERS(unistd.h)
-
-AC_MSG_CHECKING(for posix)
-AC_CACHE_VAL(g77_cv_header_posix,
-  AC_EGREP_CPP(yes,
-  [#include <sys/types.h>
-#include <unistd.h>
-#ifdef _POSIX_VERSION
-  yes
-#endif
-], 
-  g77_cv_header_posix=yes,
-  g77_cv_header_posix=no))
-AC_MSG_RESULT($g77_cv_header_posix)
-
-# We can rely on the GNU library being posix-ish.  I guess checking the 
-# header isn't actually like checking the functions, though...
-AC_MSG_CHECKING(for GNU library)
-AC_CACHE_VAL(g77_cv_lib_gnu,
-  AC_EGREP_CPP(yes,
-    [#include <stdio.h>
-#ifdef __GNU_LIBRARY__
-  yes
-#endif
-], 
-  g77_cv_lib_gnu=yes, g77_cv_lib_gnu=no))
-AC_MSG_RESULT($g77_cv_lib_gnu)
-
-# Apparently cygwin needs to be special-cased.
-AC_MSG_CHECKING([for cyg\`win'32])
-AC_CACHE_VAL(g77_cv_sys_cygwin32,
-  AC_EGREP_CPP(yes,
-  [#ifdef __CYGWIN32__
-  yes
-#endif
-],
-  g77_cv_sys_cygwin32=yes,
-  g77_cv_sys_cygwin32=no))
-AC_MSG_RESULT($g77_cv_sys_cygwin32)
-
-# ditto for mingw32.
-AC_MSG_CHECKING([for mingw32])
-AC_CACHE_VAL(g77_cv_sys_mingw32,
-  AC_EGREP_CPP(yes,
-  [#ifdef __MINGW32__
-  yes
-#endif
-],
-  g77_cv_sys_mingw32=yes,
-  g77_cv_sys_mingw32=no))
-AC_MSG_RESULT($g77_cv_sys_mingw32)
-
-
-AC_CHECK_HEADER(fcntl.h,
-   test $g77_cv_header_posix = yes && AC_DEFINE(_POSIX_SOURCE),
-   AC_DEFINE(NO_FCNTL) AC_DEFINE(OPEN_DECL))
-
-dnl Checks for typedefs, structures, and compiler characteristics.
-AC_C_CONST
-AC_TYPE_SIZE_T
-
-dnl Checks for library functions.
-AC_TYPE_SIGNAL
-# we'll get atexit by default
-if test $ac_cv_header_stdc != yes; then
-AC_CHECK_FUNC(atexit,
-  AC_DEFINE(onexit,atexit),dnl just in case
-  [AC_DEFINE(NO_ONEXIT)
-  AC_CHECK_FUNC(onexit,,
-    [AC_CHECK_FUNC(on_exit,
-     AC_DEFINE(onexit,on_exit),)])])
-else true
+dnl Checks for g77 integer types built into gcc's C front end.
+AC_MSG_CHECKING(for built-in g77 integer types)
+AC_CACHE_VAL(libf2c_cv_has_g77_builtin_types,
+[AC_TRY_COMPILE(,
+  [__g77_integer g77i;
+__g77_uinteger g77ui;
+__g77_longint g77l;
+__g77_ulongint g77ul;],
+  libf2c_cv_has_g77_builtin_types=yes,
+  libf2c_cv_has_g77_builtin_types=no)])
+AC_MSG_RESULT($libf2c_cv_has_g77_builtin_types)
+if test $libf2c_cv_has_g77_builtin_types = no; then
+  AC_MSG_ERROR([gcc doesn't define all of the built in types __g77_integer,
+__g77_uinteger, __g77_longint, and __g77_ulongint.  You may not be using
+a new enough version of gcc, or your target may not have type sizes which
+accommodate those types.])
 fi
 
-# This should always succeed on unix.
-# Apparently positive result on cygwin loses re. NON_UNIX_STDIO
-# (as of cygwin b18). Likewise on mingw.
-AC_CHECK_FUNC(fstat)
-AC_MSG_CHECKING([need for NON_UNIX_STDIO])
-if test $g77_cv_sys_cygwin32 = yes \
-  || test $g77_cv_sys_mingw32 = yes \
-  || test $ac_cv_func_fstat = no; then
-  AC_MSG_RESULT(yes)
-  AC_DEFINE(NON_UNIX_STDIO)
-else
-  AC_MSG_RESULT(no)
-fi
-
-# This is necessary for e.g. Linux:
-AC_MSG_CHECKING([for necessary members of struct FILE])
-AC_CACHE_VAL(g77_cv_struct_FILE,
-[AC_TRY_COMPILE([#include <stdio.h>],
-  [FILE s; s._ptr; s._base; s._flag;],g77_cv_struct_FILE=yes,
-  g77_cv_struct_FILE=no)])dnl
-AC_MSG_RESULT($g77_cv_struct_FILE)
-if test $g77_cv_struct_FILE = no; then
-  AC_DEFINE(MISSING_FILE_ELEMS)
-fi
-
-dnl perhaps should check also for remainder
-dnl Unfortunately, the message implies we're just checking for -lm...
-AC_CHECK_LIB(m,drem,AC_DEFINE(IEEE_drem))
-
-dnl for U77:
-dnl AC_CHECK_FUNCS(symlink getcwd lstat)
-dnl test $ac_cv_func_symlink = yes && SYMLNK=symlnk_.o
-dnl test $ac_cv_func_lstat = yes && SYMLNK="$SYMLNK lstat_.o"
-dnl AC_SUBST(SYMLNK)
-
-AC_CHECK_FUNCS(tempnam)
-
-# posix will guarantee the right behaviour for sprintf, else we can't be
-# sure; HEADER_STDC wouldn't be the right check in sunos4, for instance.
-# However, on my sunos4/gcc setup unistd.h leads us wrongly to believe
-# we're posix-conformant, so always do the test.
-AC_MSG_CHECKING(for ansi/posix sprintf result)
-dnl This loses if included as an argument to AC_CACHE_VAL because the
-dnl changequote doesn't take effect and the [] vanish.
-dnl fixme: use cached value
-AC_TRY_RUN(changequote(<<, >>)dnl
-  <<#include <stdio.h>
-    /* does sprintf return the number of chars transferred? */
-    main () {char foo[2]; (sprintf(foo, "1") == 1) ? exit(0) : exit(1);}
->>changequote([, ]),
-    g77_cv_sys_sprintf_ansi=yes,
-    g77_cv_sys_sprintf_ansi=no,
-    g77_cv_sys_sprintf_ansi=no)
-AC_CACHE_VAL(g77_cv_sys_sprintf_ansi,
-     g77_cv_sys_sprintf_ansi=$g77_cv_sys_sprintf_ansi)
-dnl We get a misleading `(cached)' message...
-if test $ac_cv_c_cross = no; then
-  AC_MSG_RESULT($g77_cv_sys_sprintf_ansi)
-else
-  AC_MSG_RESULT([can't tell -- assuming no])
-fi
-# The cygwin patch takes steps to avoid defining USE_STRLEN here -- I don't
-# understand why.
-if test $g77_cv_sys_sprintf_ansi != yes; then 
-  AC_DEFINE(USE_STRLEN)
-fi
-
-# define NON_ANSI_RW_MODES on unix (can't hurt)
-AC_MSG_CHECKING(NON_ANSI_RW_MODES)
-AC_EGREP_CPP(yes,
-[#ifdef unix
-  yes
-#endif
-#ifdef __unix
-  yes
-#endif
-#ifdef __unix__
-  yes
-#endif
-], is_unix=yes, is_unix=no)
-if test $g77_cv_sys_cygwin32 = yes || test $g77_cv_sys_mingw32 = yes; then
-  AC_MSG_RESULT(no)
-else
-  if test $is_unix = yes; then
-    AC_DEFINE(NON_ANSI_RW_MODES)
-    AC_MSG_RESULT(yes)
-  else
-    AC_MSG_RESULT(no)
-  fi
-fi
-
-# We have to firkle with the info in hconfig.h to figure out suitable types
-# (via com.h).  proj.h and com.h are in $srcdir/.., config.h which they need
-# is in ../.. and the config files are in $srcdir/../../config.
-AC_MSG_CHECKING(f2c integer type)
-late_ac_cpp=$ac_cpp
-if test "$srcdir" = . ; then
-  ac_cpp="$late_ac_cpp -I../../gcc/f  -I../../gcc -I../../gcc/config"
-else
-  ac_cpp="$late_ac_cpp -I$srcdir/../gcc/f -I$srcdir/../gcc -I$srcdir/../gcc/config"
-fi
-AC_CACHE_VAL(g77_cv_sys_f2cinteger,
-AC_EGREP_CPP(F2C_INTEGER=long int,
-[#include "proj.h"
-#define FFECOM_DETERMINE_TYPES 1
-#include "com.h"
-#if FFECOM_f2cINTEGER == FFECOM_f2ccodeLONG
-F2C_INTEGER=long int
-#elif FFECOM_f2cINTEGER == FFECOM_f2ccodeINT
-F2C_INTEGER=int
-#else
-#  error "Cannot find a suitable type for F2C_INTEGER"
-#endif
-],
- g77_cv_sys_f2cinteger="long int",)
-if test "$g77_cv_sys_f2cinteger" = ""; then
-  AC_EGREP_CPP(F2C_INTEGER=int,
-[#include "proj.h"
-#define FFECOM_DETERMINE_TYPES 1
-#include "com.h"
-#if FFECOM_f2cINTEGER == FFECOM_f2ccodeLONG
-F2C_INTEGER=long int
-#elif FFECOM_f2cINTEGER == FFECOM_f2ccodeINT
-F2C_INTEGER=int
-#else
-#  error "Cannot find a suitable type for F2C_INTEGER"
-#endif
-],
-   g77_cv_sys_f2cinteger=int,)
-fi
-if test "$g77_cv_sys_f2cinteger" = ""; then
-  AC_MSG_RESULT("")
-  AC_MSG_ERROR([Can't determine type for f2c integer; config.log may help.])
-fi
-)
-AC_MSG_RESULT($g77_cv_sys_f2cinteger)
-F2C_INTEGER=$g77_cv_sys_f2cinteger
-ac_cpp=$late_ac_cpp
-AC_SUBST(F2C_INTEGER)
-
-AC_MSG_CHECKING(f2c long int type)
-late_ac_cpp=$ac_cpp
-if test "$srcdir" = . ; then
-  ac_cpp="$late_ac_cpp -I../../gcc/f  -I../../gcc -I../../gcc/config"
-else
-  ac_cpp="$late_ac_cpp -I$srcdir/../gcc/f -I$srcdir/../gcc -I$srcdir/../gcc/config"
-fi
-AC_CACHE_VAL(g77_cv_sys_f2clongint,
-AC_EGREP_CPP(F2C_LONGINT=long int,
-[#include "proj.h"
-#define FFECOM_DETERMINE_TYPES 1
-#include "com.h"
-#if FFECOM_f2cLONGINT == FFECOM_f2ccodeLONG
-F2C_LONGINT=long int
-#elif FFECOM_f2cLONGINT == FFECOM_f2ccodeLONGLONG
-F2C_LONGINT=long long int
-#else
-#  error "Cannot find a suitable type for F2C_LONGINT"
-#endif
-],
- g77_cv_sys_f2clongint="long int",)
-if test "$g77_cv_sys_f2clongint" = ""; then
-  AC_EGREP_CPP(F2C_LONGINT=long long int,
-[#include "proj.h"
-#define FFECOM_DETERMINE_TYPES 1
-#include "com.h"
-#if FFECOM_f2cLONGINT == FFECOM_f2ccodeLONG
-F2C_LONGINT=long int
-#elif FFECOM_f2cLONGINT == FFECOM_f2ccodeLONGLONG
-F2C_LONGINT=long long int
-#else
-#  error "Cannot find a suitable type for F2C_LONGINT"
-#endif
-],
-   g77_cv_sys_f2clongint="long long int",)
-fi
-if test "$g77_cv_sys_f2clongint" = ""; then
-  AC_MSG_RESULT("")
-  AC_MSG_ERROR([Can't determine type for f2c long int; config.log may help.])
-fi
-)
-AC_MSG_RESULT($g77_cv_sys_f2clongint)
-F2C_LONGINT=$g77_cv_sys_f2clongint
-ac_cpp=$late_ac_cpp
-AC_SUBST(F2C_LONGINT)
-
-dnl maybe check for drem/remainder
-
-AC_SUBST(CROSS)
-
-
-# This EOF_CHAR is a misfeature on unix.
-AC_DEFINE(NO_EOF_CHAR_CHECK)
-
-AC_DEFINE(Skip_f2c_Undefs)
-
-dnl Craig had these in f2c.h, but they're only relevant for building libf2c
-dnl anyway.
-
-dnl   For GNU Fortran (g77), we always enable the following behaviors for
-dnl   libf2c, to make things easy on the programmer.  The alternate
-dnl   behaviors have their uses, and g77 might provide them as compiler,
-dnl   rather than library, options, so only a single copy of a shared libf2c
-dnl   need be built for a system.
-
-dnl   This makes unformatted I/O more consistent in relation to other
-dnl   systems.  It is not required by the F77 standard.
-
-AC_DEFINE(Pad_UDread)
-
-dnl   This makes ERR= and IOSTAT= returns work properly in disk-full
-dnl   situations, making things work more as expected.  It slows things
-dnl   down, so g77 will probably someday choose the original implementation
-dnl   on a case-by-case basis when it can be shown to not be necessary
-dnl   (e.g. no ERR= or IOSTAT=) or when it is given the appropriate
-dnl   compile-time option or, perhaps, source-code directive.
-
-dnl AC_DEFINE(ALWAYS_FLUSH)
-
-dnl   Most Fortran implementations do this, so to make it easier
-dnl   to compare the output of g77-compiled programs to those compiled
-dnl   by most other compilers, tell libf2c to put leading zeros in
-dnl   appropriate places on output
-
-AC_DEFINE(WANT_LEAD_0)
-
 # avoid confusion in case the `makefile's from the f2c distribution have
 # got put here
 test -f libF77/makefile && mv libF77/makefile  libF77/makefile.ori
 test -f libI77/makefile && mv libI77/makefile  libI77/makefile.ori
 test -f libU77/makefile && mv libU77/makefile  libU77/makefile.ori
 
-AC_CONFIG_SUBDIRS(libU77)
-AC_OUTPUT(Makefile f2c.h libI77/Makefile libF77/Makefile)
+# Get the version trigger filename from the toplevel
+if [[ "${with_gcc_version_trigger+set}" = set ]]; then
+	gcc_version_trigger=$with_gcc_version_trigger
+	gcc_version=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
+else
+	gcc_version_trigger=
+	gcc_version=UNKNOWN
+fi
+
+AC_SUBST(gcc_version)
+AC_SUBST(gcc_version_trigger)
+AC_CANONICAL_SYSTEM
+AC_SUBST(target_alias)
+AC_CONFIG_SUBDIRS(libU77 libI77 libF77)
+# Do Makefile first since g2c.h depends on it and shouldn't get an
+# earlier timestamp.  Of course, it does when the multilib gunk below
+# edits Makefile, sigh; see additional touch below.
+AC_OUTPUT(Makefile g2c.h:g2c.hin,
+ [test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
+if test -n "$CONFIG_FILES"; then
+  if test -n "${with_target_subdir}"; then
+    # FIXME: We shouldn't need to set ac_file
+    ac_file=Makefile
+    . ${topsrcdir}/config-ml.in
+    touch g2c.h   # to keep it more recent than Makefile
+  fi
+fi],
+srcdir=${srcdir}
+host=${host}
+target=${target}
+with_target_subdir=${with_target_subdir}
+with_multisubdir=${with_multisubdir}
+ac_configure_args="--enable-multilib ${ac_configure_args}"
+CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
+topsrcdir=${topsrcdir}
+)
 
-dnl We might have configuration options to:
-dnl * allow non-standard string concatenation (use libF77 s_catow.o,
-dnl   not s_cat.o)
-dnl * change unit preconnexion in libI77/err.c (f_init.c)
-dnl * -DALWAYS_FLUSH in libI77
-dnl * -DOMIT_BLANK_CC in libI77
 
 dnl Local Variables:
 dnl comment-start: "dnl "