CHECK_LIB([giflib], [gif], [DGifOpen])
CHECK_HEADERS([giflib], [gif lib headers], [gif_lib.h])
CHECK_LIB([fdk], [fdk-aac], [faacDecInit])
CHECK_HEADERS([fdk], [fdk headers], [fdk-aac/genericStds.h])
CHECK_LIB([giflib], [gif], [DGifOpen])
CHECK_HEADERS([giflib], [gif lib headers], [gif_lib.h])
CHECK_LIB([fdk], [fdk-aac], [faacDecInit])
CHECK_HEADERS([fdk], [fdk headers], [fdk-aac/genericStds.h])