X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fgetdomainname.m4;h=94a8717ca01aad9777043c67463aaa2394865bc7;hb=4e4242fe07c85af94d99cc30e981cf8b050f95a1;hp=88da554fc4c2e54c2c96242c5191b8a4ac8412cf;hpb=44d7c1c1f004fa9bfb8ec3948de2671a7958cf5b;p=gnulib.git

diff --git a/m4/getdomainname.m4 b/m4/getdomainname.m4
index 88da554fc..94a8717ca 100644
--- a/m4/getdomainname.m4
+++ b/m4/getdomainname.m4
@@ -1,13 +1,19 @@
-# getdomainname.m4 serial 2
-dnl Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+# getdomainname.m4 serial 4
+dnl Copyright (C) 2002-2003, 2008, 2009 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_GETDOMAINNAME],
 [
-  AC_REPLACE_FUNCS(getdomainname)
+  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+
+  dnl Persuade glibc <unistd.h> to declare getdomainname().
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+  AC_REPLACE_FUNCS([getdomainname])
   if test $ac_cv_func_getdomainname = no; then
+    HAVE_GETDOMAINNAME=0
     gl_PREREQ_GETDOMAINNAME
   fi
 ])