diff options
Diffstat (limited to 'm4/gettime.m4')
| -rw-r--r-- | m4/gettime.m4 | 47 |
1 files changed, 33 insertions, 14 deletions
diff --git a/m4/gettime.m4 b/m4/gettime.m4 index 39067be6fa8..ec1f97ee0d5 100644 --- a/m4/gettime.m4 +++ b/m4/gettime.m4 @@ -1,6 +1,5 @@ -# gettime.m4 serial 12 -dnl Copyright (C) 2002, 2004-2006, 2009-2023 Free Software Foundation, -dnl Inc. +# gettime.m4 serial 14 +dnl Copyright (C) 2002, 2004-2006, 2009-2023 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -19,25 +18,45 @@ AC_DEFUN([gl_GETTIME], ]) dnl Tests whether the function timespec_get exists. -dnl Sets gl_cv_func_timespec_get. +dnl Sets gl_cv_func_timespec_get and gl_cv_onwards_func_timespec_get. AC_DEFUN([gl_CHECK_FUNC_TIMESPEC_GET], [ + AC_REQUIRE([AC_CANONICAL_HOST]) + dnl Persuade OpenBSD <time.h> to declare timespec_get(). AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) dnl We can't use AC_CHECK_FUNC here, because timespec_get() is defined as a dnl static inline function in <time.h> on MSVC 14. - AC_CACHE_CHECK([for timespec_get], [gl_cv_func_timespec_get], - [AC_LINK_IFELSE( - [AC_LANG_PROGRAM( - [[#include <time.h> - struct timespec ts; - ]], - [[return timespec_get (&ts, 0);]]) - ], - [gl_cv_func_timespec_get=yes], - [gl_cv_func_timespec_get=no]) + dnl But at the same time, we need to notice a missing declaration, like + dnl gl_CHECK_FUNCS_ANDROID does. + AC_CHECK_DECL([timespec_get], , , [[#include <time.h>]]) + AC_CACHE_CHECK([for timespec_get], [gl_cv_onwards_func_timespec_get], + [if test $ac_cv_have_decl_timespec_get = yes; then + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <time.h> + struct timespec ts; + ]], + [[return timespec_get (&ts, 0);]]) + ], + [gl_cv_onwards_func_timespec_get=yes], + [gl_cv_onwards_func_timespec_get=no]) + else + gl_cv_onwards_func_timespec_get=no + fi + case "$host_os" in + linux*-android*) + if test $gl_cv_onwards_func_timespec_get = no; then + gl_cv_onwards_func_timespec_get='future OS version' + fi + ;; + esac ]) + case "$gl_cv_onwards_func_timespec_get" in + future*) gl_cv_func_timespec_get=no ;; + *) gl_cv_func_timespec_get=$gl_cv_onwards_func_timespec_get ;; + esac ]) AC_DEFUN([gl_GETTIME_RES], |