--- src/module_list.py.orig	2014-05-10 15:58:00.155145981 -0300
+++ src/module_list.py	2014-05-10 15:58:09.742145293 -0300
@@ -2074,7 +2074,7 @@ ext_modules = [
 def is_package_installed(name):
     return False
 
-if is_package_installed('fes'):
+if 1:
     ext_modules.extend([
        Extension("sage.libs.fes",
                  ["sage/libs/fes.pyx"],