file(GLOB FILES testout* *_GRAY_*.bmp *_GRAY_*.png *_GRAY_*.ppm *_GRAY_*.jpg *_GRAY.yuv *_420_*.bmp *_420_*.png *_420_*.ppm *_420_*.jpg *_420.yuv *_422_*.bmp *_422_*.png *_422_*.ppm *_422_*.jpg *_422.yuv *_444_*.bmp *_444_*.png *_444_*.ppm *_444_*.jpg *_444.yuv *_440_*.bmp *_440_*.png *_440_*.ppm *_440_*.jpg *_440.yuv *_411_*.bmp *_411_*.png *_411_*.ppm *_411_*.jpg *_411.yuv) if(NOT FILES STREQUAL "") message(STATUS "Removing test files") file(REMOVE ${FILES}) else() message(STATUS "No files to remove") endif()