45 lines
1.1 KiB
Text
45 lines
1.1 KiB
Text
# random_r.m4
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# serial 5
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dnl Copyright (C) 2008-2025 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_RANDOM_R],
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[
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AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
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AC_REQUIRE([AC_CANONICAL_HOST])
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AC_CHECK_HEADERS([random.h], [], [], [AC_INCLUDES_DEFAULT])
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if test $ac_cv_header_random_h = no; then
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HAVE_RANDOM_H=0
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fi
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AC_CHECK_TYPES([struct random_data],
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[], [HAVE_STRUCT_RANDOM_DATA=0],
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[[#include <stdlib.h>
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#if HAVE_RANDOM_H
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# include <random.h>
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#endif
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]])
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dnl On AIX and OSF/1, these functions exist, but with different declarations.
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dnl Override them all.
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case "$host_os" in
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aix* | osf*)
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REPLACE_RANDOM_R=1
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;;
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*)
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AC_CHECK_FUNCS([random_r])
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if test $ac_cv_func_random_r = no; then
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HAVE_RANDOM_R=0
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fi
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;;
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esac
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])
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# Prerequisites of lib/random_r.c.
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AC_DEFUN([gl_PREREQ_RANDOM_R], [
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:
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])
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