PR libfortran/23138

	* acinclude.m4 (LIBGFOR_CHECK_MINGW_SNPRINTF): New check.
	* configure.ac: Use LIBGFOR_CHECK_MINGW_SNPRINTF.
	* libgfortran.h: If HAVE_MINGW_SNPRINTF is true, use __mingw_snprintf
	instead of snprintf.
	* config.h.in: Regenerate.
	* configure: Regenerate.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@127739 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 77 insertions, 0 deletions

diff --git a/libgfortran/configure b/libgfortran/configure
index c68cb7436b7..f71c5900f2e 100755
--- a/libgfortran/configure
+++ b/libgfortran/configure
@@ -31797,6 +31797,83 @@ _ACEOF
 
 fi
 
+# Check whether __mingw_snprintf() is present
+
+  echo "$as_me:$LINENO: checking whether __mingw_snprintf is present" >&5
+echo $ECHO_N "checking whether __mingw_snprintf is present... $ECHO_C" >&6
+if test "${have_mingw_snprintf+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+    if test x$gcc_no_link = xyes; then
+  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
+echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+#include <stdio.h>
+extern int __mingw_snprintf (char *, size_t, const char *, ...);
+
+int
+main ()
+{
+
+__mingw_snprintf (NULL, 0, "%d\n", 1);
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "have_mingw_snprintf=yes"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "have_mingw_snprintf=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+
+fi
+echo "$as_me:$LINENO: result: $have_mingw_snprintf" >&5
+echo "${ECHO_T}$have_mingw_snprintf" >&6
+  if test x"$have_mingw_snprintf" = xyes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_MINGW_SNPRINTF 1
+_ACEOF
+
+  fi
+
+
 # Check for GNU libc feenableexcept
 echo "$as_me:$LINENO: checking for feenableexcept in -lm" >&5
 echo $ECHO_N "checking for feenableexcept in -lm... $ECHO_C" >&6