linux - automake 子目录对象被禁用

Question

我在使用 automake 时遇到以下错误。我知道您可以将 AUTOMAKE_OPTIONS = subdir-objects"放在 Makefile.am 的顶部。但是我如何为所有文件设置此行为，所以我不需要逐个进行？

Makefile.am:454: warning: source file 'libs/esl/src/esl_threadmutex.c' is in a subdirectory,
          Makefile.am:454: but option 'subdir-objects' is disabled
          Makefile.am:454: warning: source file 'libs/esl/ivrd.c' is in a subdirectory,
          Makefile.am:454: but option 'subdir-objects' is disabled
          Makefile.am:454: warning: source file 'libs/esl/src/esl_json.c' is in a subdirectory,
          Makefile.am:454: but option 'subdir-objects' is disabled
          Makefile.am:454: warning: source file 'libs/esl/src/esl_buffer.c' is in a subdirectory,
          Makefile.am:454: but option 'subdir-objects' is disabled
          tests/unit/unit.mk:6: warning: source file 'tests/unit/switch_event.c' is in a subdirectory,
          tests/unit/unit.mk:6: but option 'subdir-objects' is disabled
          Makefile.am:854:   'tests/unit/unit.mk' included from here
          tests/unit/unit.mk:13: warning: source file 'tests/unit/switch_hash.c' is in a subdirectory,
          tests/unit/unit.mk:13: but option 'subdir-objects' is disabled
          Makefile.am:854:   'tests/unit/unit.mk' included from here
          Makefile.am:441: warning: source file 'src/tone2wav.c' is in a subdirectory,
          Makefile.am:441: but option 'subdir-objects' is disabled
          Makefile.am: installing 'build/config/depcomp'

Answer 1

这不是您“逐案”添加的东西，因为 AUTOMAKE_OPTIONS 适用于整个项目。据推测，这也是将来应该使用的唯一方法，因此发出警告；现在它是选择加入的。

您也可以在 configure.ac 中使用 AM_INIT_AUTOMAKE 进行设置，参见 Autotools Mythbuster (全面披露:我是作者)您可以使用的全套 automake 选项。