Fix HAVE_MALLOC_POSIX misnomer.

[gnulib.git] / m4 / getdomainname.m4

diff --git a/m4/getdomainname.m4 b/m4/getdomainname.m4
index 88da554..6ce943d 100644 (file)
--- 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, 2008-2010 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
 ])