-#serial 1004
-# This file is not needed if you can assume Autoconf 2.54 or later.
-# Experimental replacement for the function in the latest CVS autoconf.
-# Use with the error.c file in ../lib.
-
-# Copyright (C) 2001 Free Software Foundation, Inc.
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-undefine([AC_FUNC_STRERROR_R])
-
-# AC_FUNC_STRERROR_R
-# ------------------
-AC_DEFUN([AC_FUNC_STRERROR_R],
-[AC_CHECK_DECLS([strerror_r])
-AC_CHECK_FUNCS([strerror_r])
-AC_CACHE_CHECK([whether strerror_r returns char *],
- ac_cv_func_strerror_r_char_p,
- [
- ac_cv_func_strerror_r_char_p=no
- if test $ac_cv_have_decl_strerror_r = yes; then
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
- [[
- char buf[100];
- char x = *strerror_r (0, buf, sizeof buf);
- char *p = strerror_r (0, buf, sizeof buf);
- return !p || x;
- ]])],
- ac_cv_func_strerror_r_char_p=yes)
- else
- # strerror_r is not declared. Choose between
- # systems that have relatively inaccessible declarations for the
- # function. BeOS and DEC UNIX 4.0 fall in this category, but the
- # former has a strerror_r that returns char*, while the latter
- # has a strerror_r that returns `int'.
- # This test should segfault on the DEC system.
- AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
- extern char *strerror_r ();],
- [[char buf[100];
- char x = *strerror_r (0, buf, sizeof buf);
- exit (!isalpha (x));]])],
- ac_cv_func_strerror_r_char_p=yes, , :)
- fi
- ])
-if test $ac_cv_func_strerror_r_char_p = yes; then
- AC_DEFINE([STRERROR_R_CHAR_P], 1,
- [Define to 1 if strerror_r returns char *.])
-fi
-])# AC_FUNC_STRERROR_R