Fix FS64 prefix for support groups. ND_BUILD64BIT_ARCH was getting set in cmake, but was not getting passed to gcc.
Fix FS64 prefix for support groups.
ND_BUILD64BIT_ARCH was getting set in cmake, but was not getting passed to gcc.

gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm