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-rw-r--r--gnulib-m4/sched_yield.m422
1 files changed, 22 insertions, 0 deletions
diff --git a/gnulib-m4/sched_yield.m4 b/gnulib-m4/sched_yield.m4
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+++ b/gnulib-m4/sched_yield.m4
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+# sched_yield.m4 serial 2
+dnl Copyright (C) 2019-2022 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.
+
+AC_DEFUN([gl_FUNC_SCHED_YIELD],
+[
+ AC_REQUIRE([gl_SCHED_H_DEFAULTS])
+ AC_REQUIRE([gl_PTHREADLIB])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+
+ if { case "$host_os" in mingw*) true;; *) false;; esac; } \
+ && test $gl_threads_api = windows; then
+ dnl Choose function names that don't conflict with the mingw-w64 winpthreads
+ dnl library.
+ REPLACE_SCHED_YIELD=1
+ else
+ AC_CHECK_DECL([sched_yield], , [HAVE_SCHED_YIELD=0],
+ [[#include <sched.h>]])
+ fi
+])