--- src/Makefile.orig	2016-09-08 21:25:12 UTC
+++ src/Makefile
@@ -1,6 +1,6 @@
 # Declaration of variables
-FC = gfortran
-FFLAGS =  -w -fno-range-check -fno-automatic -fcray-pointer -std=legacy 
+FC = %%FC%%
+FFLAGS =  %%FFLAGS%% -w -fno-range-check -fno-automatic -fcray-pointer -std=legacy 
 
 # file names
 EXEC=nastran.exe