diff options
Diffstat (limited to 'acinclude.m4')
| -rw-r--r-- | acinclude.m4 | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/acinclude.m4 b/acinclude.m4 index 71657dc0e..9e4a166f2 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -45,6 +45,33 @@ AC_DEFUN([GNUPG_CHECK_TYPEDEF], ]) +# GNUPG_TIME_T_UNSIGNED +# Check whether time_t is unsigned +# +AC_DEFUN([GNUPG_TIME_T_UNSIGNED], + [ AC_CACHE_CHECK(whether time_t is unsigned, gnupg_cv_time_t_unsigned, + [AC_REQUIRE([AC_HEADER_TIME])dnl + AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY( + [AC_INCLUDES_DEFAULT([]) +#if TIME_WITH_SYS_TIME +# include <sys/time.h> +# include <time.h> +#else +# if HAVE_SYS_TIME_H +# include <sys/time.h> +# else +# include <time.h> +# endif +#endif +], + [((time_t)-1) < 0])], + gnupg_cv_time_t_unsigned=no, gnupg_cv_time_t_unsigned=yes)]) + if test $gnupg_cv_time_t_unsigned = yes; then + AC_DEFINE(HAVE_UNSIGNED_TIME_T,1,[Defined if time_t is an unsigned type]) + fi +])# GNUPG_TIME_T_UNSIGNED + + dnl GNUPG_CHECK_GNUMAKE dnl AC_DEFUN([GNUPG_CHECK_GNUMAKE], |