X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Ffree.m4;h=566734b775a357649e14bcda9a49be28bf3a6a8a;hb=1b9bd2b9f83a84ede12622d6a040383b6bded37d;hp=5e7546530b385a2bbc064d3fcc18d55822c22c87;hpb=bbe3a5c49043d2109dc7b091c326a48633f127b9;p=gnulib.git

diff --git a/m4/free.m4 b/m4/free.m4
index 5e7546530..566734b77 100644
--- a/m4/free.m4
+++ b/m4/free.m4
@@ -1,12 +1,9 @@
 # Check whether free (NULL) is supposed to work.
 
-# Copyright (C) 2003, 2004 Free Software Foundation, Inc.
-
-# This file is free software, distributed under the terms of the GNU
-# General Public License.  As a special exception to the GNU General
-# Public License, this file may be distributed as part of a program
-# that contains a configuration script generated by Autoconf, under
-# the same distribution terms as the rest of that program.
+# Copyright (C) 2003, 2004, 2005 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.
 
 # Written by Paul Eggert.
 
@@ -19,14 +16,11 @@
 
 AC_DEFUN([gl_FUNC_FREE],
 [
-  AC_CHECK_HEADERS_ONCE(unistd.h)
   AC_CACHE_CHECK([whether free (NULL) is known to work],
     [gl_cv_func_free],
     [AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM(
-	  [[@%:@if HAVE_UNISTD_H
-	      @%:@include <unistd.h>
-	    @%:@endif]],
+	  [[@%:@include <unistd.h>]],
 	  [[@%:@if _POSIX_VERSION < 199009L && \
 	        (defined unix || defined _unix || defined _unix_ \
 	         || defined __unix || defined __unix__)