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| author | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2015-08-25 15:17:22 +0000 |
|---|---|---|
| committer | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2015-08-25 15:17:22 +0000 |
| commit | 79272f68f2cbd2b29c5e606a721fed0028a180c3 (patch) | |
| tree | 5e192a5bc844da0352cb1f383d62e6ff95b57283 | |
| parent | 547b049440ae5a9b09e689c9e6545d9f566c1107 (diff) | |
| download | mpfr-79272f68f2cbd2b29c5e606a721fed0028a180c3.tar.gz | |
[acinclude.m4] Check whether the 'j' printf length modifier is working.
git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@9659 280ebfd0-de03-0410-8827-d642c229c3f4
| -rw-r--r-- | acinclude.m4 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/acinclude.m4 b/acinclude.m4 index 8653e9cce..91131273a 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -164,6 +164,25 @@ if test "$ac_cv_type_intmax_t" = yes; then if test "$mpfr_cv_have_intmax_max" = "yes"; then AC_DEFINE(MPFR_HAVE_INTMAX_MAX,1,[Define if you have a working INTMAX_MAX.]) fi + AC_CACHE_CHECK([for working 'j' printf length modifier], + mpfr_cv_have_printf_j, [ + saved_CPPFLAGS="$CPPFLAGS" + CPPFLAGS="$CPPFLAGS -I$srcdir/src" + AC_RUN_IFELSE([AC_LANG_PROGRAM([[ +#include <string.h> +#include "mpfr-intmax.h" +]],[[ + char s[64]; + sprintf (s, "%jd %ju", (intmax_t) -17, (uintmax_t) 42); + return strcmp (s, "-17 42") != 0; +]])], + mpfr_cv_have_printf_j=yes, mpfr_cv_have_printf_j=no) + CPPFLAGS="$saved_CPPFLAGS" + ]) + if test "$mpfr_cv_have_printf_j" = "yes"; then + AC_DEFINE(MPFR_HAVE_PRINTF_J,1, + [Define if you have a working 'j' printf length modifier]) + fi fi AC_CHECK_TYPE( [union fpc_csr], |