if HAVE_LIBPNG libgd_test_programs += \ gdimageflip/gdimageflip endif EXTRA_DIST += \ gdimageflip/CMakeLists.txt \ gdimageflip/remi.png \ gdimageflip/gdimageflipvertical_exp.png \ gdimageflip/gdimagefliphorizontal_exp.png \ gdimageflip/gdimageflipboth_exp.png