diff options
Diffstat (limited to 'configure.ac')
-rw-r--r-- | configure.ac | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 3e88a1b0..ca98fc2c 100644 --- a/configure.ac +++ b/configure.ac @@ -39,6 +39,31 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])], CFLAGS="$saved_CFLAGS" AC_SUBST(SYMBOL_VISIBILITY) +AC_DEFUN([CHECK_TM_INCLUDES_TM_GMTOFF], [ + AC_CACHE_CHECK( + [whether struct tm has tm_gmtoff member], + osmo_cv_tm_includes_tm_gmtoff, + [AC_LINK_IFELSE([ + AC_LANG_PROGRAM([ + #include <time.h> + ], [ + time_t t = time(NULL); + struct tm* lt = localtime(&t); + int off = lt->tm_gmtoff; + ]) + ], + osmo_cv_tm_includes_tm_gmtoff=yes, + osmo_cv_tm_includes_tm_gmtoff=no + )] + ) + if test "x$osmo_cv_tm_includes_tm_gmtoff" = xyes; then + AC_DEFINE(HAVE_TM_GMTOFF_IN_TM, 1, + [Define if struct tm has tm_gmtoff member.]) + fi +]) + +CHECK_TM_INCLUDES_TM_GMTOFF + dnl Generate the output AM_CONFIG_HEADER(config.h) |