在 Linux coreutils 包中编译特定的源文件

Question

我需要从 Linux coreutils 源文件编译特定版本的 cp(复制)和 mv(移动)实用程序。而不是编译整个包:

./configure
make

这需要很长时间，我怎么能只编译cp(./src/cp.c)和mv(./src/mv.c)？

我试图删除不相关的 c 文件，但 cp.c 和 mv.c 有太多依赖项无法跟踪...我意识到这是简化我的问题的愚蠢方法。必须有一行代码或其他东西告诉 make 或 gcc 只编译 cp 和 mv!

要使用的示例源代码:http://ftp.gnu.org/gnu/coreutils/coreutils-8.21.tar.xz

提前致谢!

Answer 1

在运行 configure 之后运行 make src/cp src/mv 应该可以工作，但是 coreutils 构建系统没有正确设置依赖项。 cp 和 mv 依赖于 Makefile 不跟踪的生成的源文件。但是，您需要的生成文件是在默认 make all 开始时创建的，因此您可以开始完整构建，并在它通过 GEN 后立即终止它行:

$ ./configure
...
$ make
  GEN    lib/alloca.h
  GEN    lib/c++defs.h
  ...
  GEN    src/version.c
  GEN    src/version.h
make  all-recursive
make[1]: Entering directory `/home/andrew/coreutils-8.21'
Making all in po
make[2]: Entering directory `/home/andrew/coreutils-8.21/po'
make[2]: Leaving directory `/home/andrew/coreutils-8.21/po'
Making all in .
make[2]: Entering directory `/home/andrew/coreutils-8.21'
  CC     lib/set-mode-acl.o
  CC     lib/copy-acl.o
^C
make[2]: *** wait: No child processes.  Stop.
make[2]: *** Waiting for unfinished jobs....
make[2]: *** wait: No child processes.  Stop.
make[1]: *** wait: No child processes.  Stop.
make[1]: *** Waiting for unfinished jobs....
make[1]: *** wait: No child processes.  Stop.
make: *** wait: No child processes.  Stop.
make: *** Waiting for unfinished jobs....
make: *** wait: No child processes.  Stop.

然后运行make src/cp src/mv来构建你需要的程序:

$ make src/cp src/mv
  CC     src/cp.o
  CC     src/copy.o
  CC     src/cp-hash.o
  CC     src/extent-scan.o
  CC     src/version.o
  AR     src/libver.a
  CC     lib/argmatch.o
  CC     lib/argv-iter.o
  CC     lib/backupfile.o
  ... 230 other files ...
  CC     lib/vasprintf.o
  CC     lib/vfprintf.o
  CC     lib/vprintf.o
  AR     lib/libcoreutils.a
  CCLD   src/cp
  CC     src/mv.o
  CC     src/remove.o
  CCLD   src/mv
$ src/cp --version
cp (GNU coreutils) 8.21
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Torbjörn Granlund, David MacKenzie, and Jim Meyering.