[Bug fortran/49693] Spurious "unused-variable" warnings for COMMON block module variables.

[tkoenig at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49693

--- Comment #4 from Thomas Koenig <tkoenig at gcc dot gnu.org> 2012-01-03 
12:36:28 UTC ---
(In reply to comment #3)
> Testing this patch:

which doesn't work.