diff -up src/module_list.py.orig src/module_list.py
--- src/module_list.py.orig 2019-09-11 08:51:57.722696682 -0600
+++ src/module_list.py 2019-09-11 08:52:38.084040542 -0600
@@ -470,10 +470,10 @@ ext_modules = [
Extension('sage.libs.ecl',
sources = ["sage/libs/ecl.pyx"]),
- Extension("sage.libs.fes",
- ["sage/libs/fes.pyx"],
- language = "c",
- libraries = ['fes']),
+# Extension("sage.libs.fes",
+# ["sage/libs/fes.pyx"],
+# language = "c",
+# libraries = ['fes']),
Extension('sage.libs.flint.flint',
sources = ["sage/libs/flint/flint.pyx"],