我一直在为这个概念苦苦挣扎,我无法真正理解和之间的区别-change
。-id
手册页指出
-id name
Changes the shared library identification name of a dynamic shared library to name. If the Mach-O binary is not a dynamic
shared library and the -id option is specified it is ignored.
-change old new
Changes the dependent shared library install name old to new in the specified Mach-O binary. More than one of these options
can be specified. If the Mach-O binary does not contain the old install name in a specified -change option the option is
ignored.
到目前为止,我已经尝试过-change
. 假设我有以下结构
Test.App
|_Contents
|_MacOS
| |_test -----> item A
|_Library
|_test_library.dylib --->item B
|_another_library.dylib --->item C
现在假设我在 itemB 上运行了以下内容
$ otool -L test_library.dylib
test_library.dylib
/some/path/another_library.dylib -->item D
上面的结果表明,test_library.dylib
取决于another_library.dylib
现在是否需要更改another_library.dylib
我会这样做的位置
install_name_tool -change /some/path/another_library.dylib some/new/path/another_library.dylib test_library.dylib
这将改变项目 D 的位置。我的问题是做install-name_tool -id
什么以及何时使用它?