re PR libfortran/23138 ([mingw32] real(16) values are printed incorrectly)
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. From-SVN: r127739
This commit is contained in:
Francois-Xavier Coudert
François-Xavier Coudert
parent
b73aff3657
commit
db8092dc4c
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@ -1,3 +1,13 @@
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2007-08-23 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
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PR libfortran/23138
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* acinclude.m4 (LIBGFOR_CHECK_MINGW_SNPRINTF): New check.
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* configure.ac: Use LIBGFOR_CHECK_MINGW_SNPRINTF.
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* libgfortran.h: If HAVE_MINGW_SNPRINTF is true, use __mingw_snprintf
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instead of snprintf.
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* config.h.in: Regenerate.
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* configure: Regenerate.
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2007-08-22 Bernhard Fischer <rep.dot.nop@gmail.com>
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* libgfortran/Makefile.am (AM_CPPFLAGS): Commentary typo fix.
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@ -386,3 +386,19 @@ AC_DEFUN([LIBGFOR_CHECK_FPSETMASK], [
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AC_DEFINE(HAVE_FPSETMASK, 1, [Define if you have fpsetmask.])
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fi
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])
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dnl Check whether we have a mingw that provides a __mingw_snprintf function
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AC_DEFUN([LIBGFOR_CHECK_MINGW_SNPRINTF], [
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AC_CACHE_CHECK([whether __mingw_snprintf is present], have_mingw_snprintf, [
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AC_TRY_LINK([
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#include <stdio.h>
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extern int __mingw_snprintf (char *, size_t, const char *, ...);
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],[
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__mingw_snprintf (NULL, 0, "%d\n", 1);
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],
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eval "have_mingw_snprintf=yes", eval "have_mingw_snprintf=no")
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])
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if test x"$have_mingw_snprintf" = xyes; then
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AC_DEFINE(HAVE_MINGW_SNPRINTF, 1, [Define if you have __mingw_snprintf.])
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fi
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])
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@ -522,6 +522,9 @@
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/* Define to 1 if you have the <memory.h> header file. */
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#undef HAVE_MEMORY_H
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/* Define if you have __mingw_snprintf. */
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#undef HAVE_MINGW_SNPRINTF
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/* Define to 1 if you have the `mkstemp' function. */
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#undef HAVE_MKSTEMP
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@ -31797,6 +31797,83 @@ _ACEOF
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fi
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# Check whether __mingw_snprintf() is present
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echo "$as_me:$LINENO: checking whether __mingw_snprintf is present" >&5
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echo $ECHO_N "checking whether __mingw_snprintf is present... $ECHO_C" >&6
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if test "${have_mingw_snprintf+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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if test x$gcc_no_link = xyes; then
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{ { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
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echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
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{ (exit 1); exit 1; }; }
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fi
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cat >conftest.$ac_ext <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#include <stdio.h>
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extern int __mingw_snprintf (char *, size_t, const char *, ...);
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int
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main ()
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{
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__mingw_snprintf (NULL, 0, "%d\n", 1);
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;
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return 0;
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}
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_ACEOF
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rm -f conftest.$ac_objext conftest$ac_exeext
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if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
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(eval $ac_link) 2>conftest.er1
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ac_status=$?
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grep -v '^ *+' conftest.er1 >conftest.err
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rm -f conftest.er1
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cat conftest.err >&5
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } &&
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{ ac_try='test -z "$ac_c_werror_flag"
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|| test ! -s conftest.err'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; } &&
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{ ac_try='test -s conftest$ac_exeext'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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eval "have_mingw_snprintf=yes"
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else
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echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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eval "have_mingw_snprintf=no"
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fi
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rm -f conftest.err conftest.$ac_objext \
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conftest$ac_exeext conftest.$ac_ext
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fi
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echo "$as_me:$LINENO: result: $have_mingw_snprintf" >&5
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echo "${ECHO_T}$have_mingw_snprintf" >&6
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if test x"$have_mingw_snprintf" = xyes; then
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cat >>confdefs.h <<\_ACEOF
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#define HAVE_MINGW_SNPRINTF 1
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_ACEOF
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fi
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# Check for GNU libc feenableexcept
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echo "$as_me:$LINENO: checking for feenableexcept in -lm" >&5
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echo $ECHO_N "checking for feenableexcept in -lm... $ECHO_C" >&6
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@ -383,6 +383,9 @@ LIBGFOR_CHECK_FOR_BROKEN_FPCLASSIFY
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# Check whether the system has a working stat()
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LIBGFOR_CHECK_WORKING_STAT
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# Check whether __mingw_snprintf() is present
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LIBGFOR_CHECK_MINGW_SNPRINTF
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# Check for GNU libc feenableexcept
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AC_CHECK_LIB([m],[feenableexcept],[have_feenableexcept=yes AC_DEFINE([HAVE_FEENABLEEXCEPT],[1],[libm includes feenableexcept])])
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@ -70,6 +70,16 @@ typedef off_t gfc_offset;
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#endif
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/* On mingw, work around the buggy Windows snprintf() by using the one
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mingw provides, __mingw_snprintf(). We also provide a prototype for
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__mingw_snprintf(), because the mingw headers currently don't have one. */
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#if HAVE_MINGW_SNPRINTF
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extern int __mingw_snprintf (char *, size_t, const char *, ...);
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#undef snprintf
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#define snprintf __mingw_snprintf
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#endif
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/* For a library, a standard prefix is a requirement in order to partition
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the namespace. IPREFIX is for symbols intended to be internal to the
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library. */
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