Makefile -MM -M 参数说明

gcc -M test.c
/usr/include/bits/predefs.h /usr/include/sys/cdefs.h \
 /usr/include/bits/wordsize.h /usr/include/gnu/stubs.h \
 /usr/include/gnu/stubs-32.h \
 /usr/lib/gcc/i486-linux-gnu/4.4.3/include/stddef.h \
 /usr/include/bits/types.h /usr/include/bits/typesizes.h \
 /usr/include/libio.h /usr/include/_G_config.h /usr/include/wchar.h \
 /usr/lib/gcc/i486-linux-gnu/4.4.3/include/stdarg.h \
 /usr/include/bits/stdio_lim.h /usr/include/bits/sys_errlist.h

-M: 显示所有的.h文件

gcc -MM test.c
test.o: test.c

-MM :显示依赖关系。