1# serial 5 2dnl Copyright (C) 2008-2016 Free Software Foundation, Inc. 3dnl This file is free software; the Free Software Foundation 4dnl gives unlimited permission to copy and/or distribute it, 5dnl with or without modifications, as long as this notice is preserved. 6 7AC_DEFUN([gl_FUNC_RANDOM_R], 8[ 9 AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) 10 AC_REQUIRE([AC_CANONICAL_HOST]) 11 12 AC_CHECK_HEADERS([random.h], [], [], [AC_INCLUDES_DEFAULT]) 13 if test $ac_cv_header_random_h = no; then 14 HAVE_RANDOM_H=0 15 fi 16 17 AC_CHECK_TYPES([struct random_data], 18 [], [HAVE_STRUCT_RANDOM_DATA=0], 19 [[#include <stdlib.h> 20 #if HAVE_RANDOM_H 21 # include <random.h> 22 #endif 23 ]]) 24 25 dnl On AIX and OSF/1, these functions exist, but with different declarations. 26 dnl Override them all. 27 case "$host_os" in 28 aix* | osf*) 29 REPLACE_RANDOM_R=1 30 ;; 31 *) 32 AC_CHECK_FUNCS([random_r]) 33 if test $ac_cv_func_random_r = no; then 34 HAVE_RANDOM_R=0 35 fi 36 ;; 37 esac 38]) 39 40# Prerequisites of lib/random_r.c. 41AC_DEFUN([gl_PREREQ_RANDOM_R], [ 42 : 43]) 44