--- /usr/portage/eclass/php5_1-sapi.eclass	2007-05-12 07:05:41.000000000 +0200
+++ /usr/portage/eclass/php5_1-sapi.eclass	2007-12-12 19:44:33.000000000 +0100
@@ -413,7 +413,11 @@ 
 	phpconfutils_extension_without	"iconv"			"iconv"			0
 	phpconfutils_extension_with		"informix"		"informix"		1
 	phpconfutils_extension_disable	"ipv6"			"ipv6"			0
-	phpconfutils_extension_with		"kerberos"		"kerberos"		0 "/usr"
+	if has_version "app-crypt/heimdal" ; then
+	    phpconfutils_extension_with		"kerberos"		"kerberos"		0 "/usr/heimdal"
+	else
+	    phpconfutils_extension_with		"kerberos"		"kerberos"		0 "/usr"
+	fi
 	phpconfutils_extension_disable	"libxml"		"xml"			0
 	phpconfutils_extension_enable	"mbstring"		"unicode"		1
 	phpconfutils_extension_with		"mcrypt"		"crypt"			1