c++ - 扩展名为 .f 的文件如何生成

Question

在 ubuntu 15.04 中执行命令“make”后，我发现文件 .*.o.d 的内容如下:

objdir.o: objdir.cpp /usr/lib/gcc/i486-linux-gnu/4.4.3/include/stdarg.h \
 /usr/include/assert.h /usr/include/features.h \
 /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 ../include/ntstatus.h ../include/windef.h \
 ../include/winnt.h ../include/basetsd.h /usr/include/ctype.h \
 /usr/include/bits/types.h /usr/include/bits/typesizes.h \
 /usr/include/endian.h /usr/include/bits/endian.h \
 /usr/include/bits/byteswap.h /usr/include/xlocale.h \
 /usr/lib/gcc/i486-linux-gnu/4.4.3/include/stddef.h /usr/include/string.h \
 /usr/include/bits/string3.h ../include/pshpack2.h ../include/poppack.h \
 ../include/pshpack4.h ../include/guiddef.h ../include/pshpack8.h \
 ../include/winternl.h debug.h object.h list.h unicode.h objdir.h \
 object.inl ntcall.h thread.h timer.h fiber.h token.h mem.h \
 /usr/include/unistd.h /usr/include/bits/posix_opt.h \
 /usr/include/bits/environments.h /usr/include/bits/confname.h \
 /usr/include/getopt.h /usr/include/bits/unistd.h process.h symlink.h

但是在那些文件中我得到了错误的路径 - 例如/usr/lib/gcc/i486-linux-gnu/4.4.3 必须是/usr/lib/gcc/i686-linux-gnu/4.9那么这些文件如何生成以及我如何更改这些文件中的路径？

Answer 1

您可以在gnu 环境中使用gcc -MM 生成依赖文件(.d)。来自 this page :

The solution is fairly simple: every time we build a .o file, we also create a file with extension .d (for dependency) that records which files were used to create the corresponding .o file. (Note that we do not create the .d files ahead of time, in contrast to some approaches.) The .d files will be written in the make language itself, and included into the primary Makefile. We can generate the files using the -MM option of gcc