diff -Naur bitfighter-019e.orig/tnl/tnlTypes.h bitfighter-019e/tnl/tnlTypes.h
--- bitfighter-019e.orig/tnl/tnlTypes.h	2015-05-12 00:58:58.656019389 +0000
+++ bitfighter-019e/tnl/tnlTypes.h	2015-11-15 05:41:54.353333331 +0000
@@ -333,6 +333,8 @@
 #      define TNL_GCC_3
 #    elif __GNUC__ == 4
 #      define TNL_GCC_4
+#    elif __GNUC__ == 5
+#      define TNL_GCC_5
 #    else
 #      error "TNL: Unsupported version of GCC (see tnlMethodDispatch.cpp)"
 #    endif