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# random_r.m4
# serial 5
dnl Copyright (C) 2008-2024 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_RANDOM_R],
[
AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
AC_REQUIRE([AC_CANONICAL_HOST])
AC_CHECK_HEADERS([random.h], [], [], [AC_INCLUDES_DEFAULT])
if test $ac_cv_header_random_h = no; then
HAVE_RANDOM_H=0
fi
AC_CHECK_TYPES([struct random_data],
[], [HAVE_STRUCT_RANDOM_DATA=0],
[[#include <stdlib.h>
#if HAVE_RANDOM_H
# include <random.h>
#endif
]])
dnl On AIX and OSF/1, these functions exist, but with different declarations.
dnl Override them all.
case "$host_os" in
aix* | osf*)
REPLACE_RANDOM_R=1
;;
*)
AC_CHECK_FUNCS([random_r])
if test $ac_cv_func_random_r = no; then
HAVE_RANDOM_R=0
fi
;;
esac
])
# Prerequisites of lib/random_r.c.
AC_DEFUN([gl_PREREQ_RANDOM_R], [
:
])
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