libgd_test_programs += \ gdimagesetpixel/bug00186 \ gdimagesetpixel/gdeffectmultiply \ gdimagesetpixel/gdeffectoverlay if HAVE_LIBPNG libgd_test_programs += \ gdimagesetpixel/alpha_blending endif EXTRA_DIST += \ gdimagesetpixel/CMakeLists.txt \ gdimagesetpixel/alphablending_exp.png