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Make 命令

  1. make 輔助說明
    [dywang@dyw219 make1]$ make --help
    Usage: make [options] [target] ...
    Options:
      -b, -m                      Ignored for compatibility.
      -B, --always-make           Unconditionally make all targets.
      -C DIRECTORY, --directory=DIRECTORY
                                  Change to DIRECTORY before doing anything.
      -d                          Print lots of debugging information.
      --debug[=FLAGS]             Print various types of debugging information.
      -e, --environment-overrides
                                  Environment variables override makefiles.
      -f FILE, --file=FILE, --makefile=FILE
                                  Read FILE as a makefile.
      -h, --help                  Print this message and exit.
      -i, --ignore-errors         Ignore errors from commands.
      -I DIRECTORY, --include-dir=DIRECTORY
                                  Search DIRECTORY for included makefiles.
      -j [N], --jobs[=N]          Allow N jobs at once; infinite jobs with no arg.
      -k, --keep-going            Keep going when some targets can't be made.
      -l [N], --load-average[=N], --max-load[=N]
                                  Don't start multiple jobs unless load is below N.
      -L, --check-symlink-times   Use the latest mtime between symlinks and target.
      -n, --just-print, --dry-run, --recon
                                  Don't actually run any commands; just print them.
      -o FILE, --old-file=FILE, --assume-old=FILE
                                  Consider FILE to be very old and don't remake it.
      -p, --print-data-base       Print make's internal database.
      -q, --question              Run no commands; exit status says if up to date.
      -r, --no-builtin-rules      Disable the built-in implicit rules.
      -R, --no-builtin-variables  Disable the built-in variable settings.
      -s, --silent, --quiet       Don't echo commands.
      -S, --no-keep-going, --stop
                                  Turns off -k.
      -t, --touch                 Touch targets instead of remaking them.
      -v, --version               Print the version number of make and exit.
      -w, --print-directory       Print the current directory.
      --no-print-directory        Turn off -w, even if it was turned on implicitly.
      -W FILE, --what-if=FILE, --new-file=FILE, --assume-new=FILE
                                  Consider FILE to be infinitely new.
      --warn-undefined-variables  Warn when an undefined variable is referenced.
    
    This program built for x86_64-redhat-linux-gnu
    Report bugs to <bug-make@gnu.org>
    
  2. make 常用的選項及參數:
    1. -j N:讓 make 在同一個時間執行 N 個命令,以加速編譯的時間。
    2. -k:讓 make 在遇到錯誤時,仍然繼續運行,不停止在第一個問題點。
    3. -n:告訴 make 只印出將會進行的工作,而不真正去編譯。
    4. -f <filename>:告訴 make 該使用的 makefile 檔案。如果不使用這個選項, make 會依序尋找目錄中的 GNUmakefile, makefile, Makefile。



2019-06-17