view m4/random_r.m4 @ 14315:27fdb01a2e2e

stdlib: improve random_r modularization
author Paul Eggert <eggert@cs.ucla.edu>
date Tue, 08 Feb 2011 12:27:12 -0800
parents 289c9659c1c4
children 221318b8a54e
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# serial 3
dnl Copyright (C) 2008-2011 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_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
    ]])

  AC_CHECK_FUNCS([random_r])
  if test $ac_cv_func_random_r = no; then
    HAVE_RANDOM_R=0
    AC_LIBOBJ([random_r])
    gl_PREREQ_RANDOM_R
  fi
])

# Prerequisites of lib/random_r.c.
AC_DEFUN([gl_PREREQ_RANDOM_R], [
  :
])