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b1f65faabb
* etc/license-notices/unlimited: Add a short warranty disclaimer sentence. * m4/*.m4: Update. * build-aux/prefix-gnulib-mk: Likewise. * HACKING: Likewise.
34 lines
1011 B
Plaintext
34 lines
1011 B
Plaintext
# call_once.m4
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# serial 2
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dnl Copyright (C) 2024 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl This file is offered as-is, without any warranty.
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AC_DEFUN([gl_FUNC_CALL_ONCE],
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[
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AC_REQUIRE([gl_THREADS_H])
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AC_REQUIRE([AC_CANONICAL_HOST])
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gl_CHECK_FUNCS_ANDROID([call_once], [[#include <threads.h>]])
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case "$gl_cv_onwards_func_call_once" in
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yes)
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dnl Work around Cygwin 3.5.3 bug.
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AC_CACHE_CHECK([whether call_once works],
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[gl_cv_func_call_once_works],
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[case "$host_os" in
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cygwin*) gl_cv_func_call_once_works="guessing no" ;;
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*) gl_cv_func_call_once_works="yes" ;;
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esac
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])
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case "$gl_cv_func_call_once_works" in
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*yes) ;;
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*) REPLACE_CALL_ONCE=1 ;;
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esac
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;;
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future*)
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REPLACE_CALL_ONCE=1
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;;
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esac
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])
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