--- CMakeLists.txt.orig	2020-06-26 12:18:06 UTC
+++ CMakeLists.txt
@@ -470,7 +470,7 @@ ADD_SUBDIRECTORY(umfpack)
 ADD_SUBDIRECTORY(fhutiter)
 ADD_SUBDIRECTORY(meshgen2d)
 ADD_SUBDIRECTORY(fem)
-ADD_SUBDIRECTORY(mathlibs)
+#ADD_SUBDIRECTORY(mathlibs)
 ADD_SUBDIRECTORY(elmergrid)
 ADD_SUBDIRECTORY(license_texts)