# serial 5

dnl Copyright (C) 2008-2016 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], [

  :

])