--- src/module_list.py.orig 2014-05-10 16:02:43.371125667 -0300 +++ src/module_list.py 2014-05-10 16:02:58.362124591 -0300 @@ -2115,7 +2115,7 @@ if (os.path.isfile(SAGE_INC + "/cplex.h" libraries = ["stdc++", "cplex"]) ) -if is_package_installed('cbc'): +if 1: ext_modules.append( Extension("sage.numerical.backends.coin_backend", ["sage/numerical/backends/coin_backend.pyx"],