MACOS             296 extra_lib/include/png/pngconf.h #ifndef MACOS
MACOS             304 extra_lib/include/png/pngconf.h #if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE)
MACOS             369 extra_lib/include/png/pngconf.h #  if defined(MACOS)
MACOS             129 src/utils/zutil.h #if defined(MACOS) || defined(TARGET_OS_MAC)