--- xen.spec.orig	2009-09-14 19:14:57.000000000 +0300
+++ xen.spec	2009-09-14 19:16:06.000000000 +0300
@@ -62,6 +62,8 @@
 BuildRequires: gettext
 BuildRequires: gnutls-devel
 BuildRequires: openssl-devel
+# For pygrub EXT4 support
+BuildRequires: e2fsprogs-devel
 # For ioemu PCI passthrough
 BuildRequires: pciutils-devel
 # modern compressed kernels