diff options
Diffstat (limited to 'm4/time_h.m4')
| -rw-r--r-- | m4/time_h.m4 | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/m4/time_h.m4 b/m4/time_h.m4 index 07e6967e45b..b6a1aa3bc0f 100644 --- a/m4/time_h.m4 +++ b/m4/time_h.m4 @@ -2,7 +2,7 @@ # Copyright (C) 2000-2001, 2003-2007, 2009-2021 Free Software Foundation, Inc. -# serial 13 +# serial 15 # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, @@ -25,6 +25,22 @@ AC_DEFUN([gl_HEADER_TIME_H_BODY], AC_REQUIRE([gl_CHECK_TYPE_STRUCT_TIMESPEC]) AC_REQUIRE([AC_C_RESTRICT]) + + AC_CACHE_CHECK([for TIME_UTC in <time.h>], + [gl_cv_time_h_has_TIME_UTC], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <time.h> + ]], + [[static int x = TIME_UTC; x++;]])], + [gl_cv_time_h_has_TIME_UTC=yes], + [gl_cv_time_h_has_TIME_UTC=no])]) + if test $gl_cv_time_h_has_TIME_UTC = yes; then + TIME_H_DEFINES_TIME_UTC=1 + else + TIME_H_DEFINES_TIME_UTC=0 + fi + AC_SUBST([TIME_H_DEFINES_TIME_UTC]) ]) dnl Check whether 'struct timespec' is declared @@ -113,6 +129,7 @@ AC_DEFUN([gl_HEADER_TIME_H_DEFAULTS], GNULIB_STRFTIME=0; AC_SUBST([GNULIB_STRFTIME]) GNULIB_STRPTIME=0; AC_SUBST([GNULIB_STRPTIME]) GNULIB_TIMEGM=0; AC_SUBST([GNULIB_TIMEGM]) + GNULIB_TIMESPEC_GET=0; AC_SUBST([GNULIB_TIMESPEC_GET]) GNULIB_TIME_R=0; AC_SUBST([GNULIB_TIME_R]) GNULIB_TIME_RZ=0; AC_SUBST([GNULIB_TIME_RZ]) GNULIB_TZSET=0; AC_SUBST([GNULIB_TZSET]) @@ -123,6 +140,7 @@ AC_DEFUN([gl_HEADER_TIME_H_DEFAULTS], HAVE_NANOSLEEP=1; AC_SUBST([HAVE_NANOSLEEP]) HAVE_STRPTIME=1; AC_SUBST([HAVE_STRPTIME]) HAVE_TIMEGM=1; AC_SUBST([HAVE_TIMEGM]) + HAVE_TIMESPEC_GET=1; AC_SUBST([HAVE_TIMESPEC_GET]) dnl Even GNU libc does not have timezone_t yet. HAVE_TIMEZONE_T=0; AC_SUBST([HAVE_TIMEZONE_T]) dnl If another module says to replace or to not replace, do that. |