PR fortran/16336

[pf3gnuchains/gcc-fork.git] / libiberty / configure.ac

diff --git a/libiberty/configure.ac b/libiberty/configure.ac
index 3e379cc..42fe85d 100644 (file)
--- a/libiberty/configure.ac
+++ b/libiberty/configure.ac
@@ -1,7 +1,8 @@
 dnl Process this file with autoconf to produce a configure script
 
-AC_PREREQ(2.57)
-AC_INIT(xmalloc.c)
+AC_PREREQ(2.59)
+AC_INIT
+AC_CONFIG_SRCDIR([xmalloc.c])
 
 # This works around the fact that libtool configuration may change LD
 # for this particular configuration, but some shells, instead of
@@ -158,13 +159,47 @@ AC_SUBST_FILE(host_makefile_frag)
 # 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 limits.h stdlib.h malloc.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 sys/pstat.h sys/sysmp.h sys/sysinfo.h machine/hal_sysinfo.h sys/table.h sys/sysctl.h sys/systemcfg.h)
+AC_CHECK_HEADERS(sys/file.h sys/param.h limits.h stdlib.h malloc.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 sys/pstat.h sys/sysmp.h sys/sysinfo.h machine/hal_sysinfo.h sys/table.h sys/sysctl.h sys/systemcfg.h stdint.h)
 AC_HEADER_SYS_WAIT
 AC_HEADER_TIME
 
 libiberty_AC_DECLARE_ERRNO
 
 AC_CHECK_TYPE(uintptr_t, unsigned long)
+
+# Look for a 64-bit type.
+AC_MSG_CHECKING([for a 64-bit type])
+AC_CACHE_VAL(liberty_cv_uint64,
+[AC_TRY_COMPILE(
+[#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#endif],
+[extern uint64_t foo;],
+liberty_cv_uint64=uint64_t,
+[AC_TRY_COMPILE(
+[#ifdef HAVE_LIMITS_H
+#include <limits.h>
+#endif
+#ifndef CHAR_BIT
+#define CHAR_BIT 8
+#endif],
+[extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
+liberty_cv_uint64="unsigned long",
+[AC_TRY_COMPILE(
+[#ifdef HAVE_LIMITS_H
+#include <limits.h>
+#endif
+#ifndef CHAR_BIT
+#define CHAR_BIT 8
+#endif],
+[extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
+liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
+AC_MSG_RESULT($liberty_cv_uint64)
+if test "$liberty_cv_uint64" != none; then
+  AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
+                     [Define to an unsigned 64-bit type available in the compiler.])
+fi
+
 # Given the above check, we always have uintptr_t or a fallback
 # definition.  So define HAVE_UINTPTR_T in case any imported code
 # relies on it.
@@ -433,7 +468,7 @@ if test -z "${setobjs}"; then
   AC_ISC_POSIX
   AC_REPLACE_FUNCS($funcs)
   libiberty_AC_FUNC_C_ALLOCA
-  AC_FUNC_VFORK
+  AC_FUNC_FORK
   if test $ac_cv_func_vfork_works = no; then
     AC_LIBOBJ([vfork])
   fi
@@ -449,9 +484,9 @@ if test -z "${setobjs}"; then
   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 = $v;],
-                  [eval "libiberty_cv_var_$v=yes"],
-                  [eval "libiberty_cv_var_$v=no"])])
+      [AC_LINK_IFELSE([AC_LANG_PROGRAM([[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_MSG_RESULT(yes)
       n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
@@ -464,11 +499,11 @@ if test -z "${setobjs}"; then
   # special check for _system_configuration because AIX <4.3.2 do not
   # contain the `physmem' member.
   AC_MSG_CHECKING([for external symbol _system_configuration])
-  AC_TRY_COMPILE([#include <sys/systemcfg.h>],
-                 [double x = _system_configuration.physmem;],
+  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
+                       [[double x = _system_configuration.physmem;]])],
     [AC_MSG_RESULT([yes])
     AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
-              [Define if you have the _system_configuration variable.])],
+             [Define if you have the _system_configuration variable.])],
     [AC_MSG_RESULT([no])])
 
   AC_CHECK_FUNCS($checkfuncs)
@@ -496,6 +531,7 @@ else
 fi
 AC_SUBST(INSTALL_DEST)
 
+m4_pattern_allow(LIBOBJS)
 L=""
 for l in x $LIBOBJS; do
   case $l in
@@ -506,8 +542,9 @@ done
 LIBOBJS="$L"
 
 # We need multilib support, but only if configuring for the target.
-AC_OUTPUT(Makefile testsuite/Makefile,
-[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
+AC_CONFIG_FILES([Makefile testsuite/Makefile])
+AC_CONFIG_COMMANDS([default],
+  [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
 if test -n "$CONFIG_FILES"; then
   if test -n "${with_build_subdir}" || test -n "${with_target_subdir}"; then
     # FIXME: We shouldn't need to set ac_file
@@ -515,8 +552,8 @@ if test -n "$CONFIG_FILES"; then
     LD="${ORIGINAL_LD_FOR_MULTILIBS}"
     . ${libiberty_topdir}/config-ml.in
   fi
-fi],
-srcdir=${srcdir}
+fi]],
+[[srcdir=${srcdir}
 host=${host}
 target=${target}
 with_target_subdir=${with_target_subdir}
@@ -526,4 +563,5 @@ ac_configure_args="--enable-multilib ${ac_configure_args}"
 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
 libiberty_topdir=${libiberty_topdir}
-)
+]])
+AC_OUTPUT