Suppress a GCC4.x compiler warning. Code now compiles free of warnings.
Suppress a GCC4.x compiler warning. Code now compiles free of warnings.

The regression test passes.

rcancro/giflib,rcancro/giflib,Distrotech/giflib,Distrotech/giflib,cention-sany/libgif,cention-sany/libgif,rcancro/giflib