diff -urN php-4.3.11/ext/posix/posix.c php-4.3.11.new/ext/posix/posix.c
--- php-4.3.11/ext/posix/posix.c	2005-01-28 02:39:42.000000000 +0100
+++ php-4.3.11.new/ext/posix/posix.c	2007-02-28 17:11:34.000000000 +0100
@@ -533,7 +533,7 @@
 	add_assoc_string(return_value, "version",  u.version,  1);
 	add_assoc_string(return_value, "machine",  u.machine,  1);
 #ifdef _GNU_SOURCE
-	add_assoc_string(return_value, "domainname", u.domainname, 1);
+	add_assoc_string(return_value, "domainname", u.__domainname, 1);
 #endif
 }
 /* }}} */