Cygwin
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mingw64-x86_64-giflib-src: GIF image manipulation library for Win64 toolchain (source)
2013-12-02 01:20 394 4.1.6-no-undefined.patch 2013-12-02 01:20 506050 giflib-4.1.6.tar.bz2 2013-12-02 01:20 552 mingw64-x86_64-giflib.cygport