1 # sched_yield.m4 serial 2
2 dnl Copyright (C) 2019-2020 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
7 AC_DEFUN([gl_FUNC_SCHED_YIELD],
9 AC_REQUIRE([gl_SCHED_H_DEFAULTS])
10 AC_REQUIRE([gl_PTHREADLIB])
11 AC_REQUIRE([AC_CANONICAL_HOST])
13 if { case "$host_os" in mingw*) true;; *) false;; esac; } \
14 && test $gl_threads_api = windows; then
15 dnl Choose function names that don't conflict with the mingw-w64 winpthreads
19 AC_CHECK_DECL([sched_yield], , [HAVE_SCHED_YIELD=0],
20 [[#include <sched.h>]])