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# pthread-spin.m4 serial 2
dnl Copyright (C) 2019-2023 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.
AC_DEFUN([gl_PTHREAD_SPIN],
[
AC_REQUIRE([gl_PTHREAD_H])
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_PTHREAD_SPIN_INIT=1
REPLACE_PTHREAD_SPIN_LOCK=1
REPLACE_PTHREAD_SPIN_TRYLOCK=1
REPLACE_PTHREAD_SPIN_UNLOCK=1
REPLACE_PTHREAD_SPIN_DESTROY=1
else
if test $HAVE_PTHREAD_H = 0 || test $HAVE_PTHREAD_SPINLOCK_T = 0; then
HAVE_PTHREAD_SPIN_INIT=0
HAVE_PTHREAD_SPIN_LOCK=0
HAVE_PTHREAD_SPIN_TRYLOCK=0
HAVE_PTHREAD_SPIN_UNLOCK=0
HAVE_PTHREAD_SPIN_DESTROY=0
fi
fi
])
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