我一直在努力解决这个概念,我无法真正理解-change和-id之间的区别.手册页说明
-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上运行了以下命令
$otool -L test_library.dylib test_library.dylib /some/path/another_library.dylib -->item D
上面的结果表明,如果我需要更改another_library.dylib的位置,test_library.dylib现在依赖于another_library.dylib我会这样做
install_name_tool -change /some/path/another_library.dylib some/new/path/another_library.dylib test_library.dylib
这会改变项目D的位置.我的问题是install-name_tool -id做什么以及何时使用它？