make test 提示错误:$ ./configure $ make $ make test
打开makefile 找到 cmp 所在行,改成 diff (或者其他文本对比工具) 再 make test 即可process_begin: CreateProcess(NULL, cmp ./testimg.ppm testout.ppm, ...) failed. make (e=2): ????????????????? make: *** [Makefile check-local] Error 2