diff -up src/module_list.py.orig src/module_list.py --- src/module_list.py.orig 2014-11-18 15:30:01.952131730 -0200 +++ src/module_list.py 2014-11-18 15:30:08.968131823 -0200 @@ -2177,7 +2177,7 @@ if 1: ) -if is_package_installed('cryptominisat'): +if 1: ext_modules.extend([ Extension("sage.sat.solvers.cryptominisat.cryptominisat", ["sage/sat/solvers/cryptominisat/cryptominisat.pyx"],