fix: Fix up search path of bootstrapped Python toolchain dylib #2089
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aignas
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Jul 25, 2024
aignas
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Jul 26, 2024
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aignas
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LGTM, could you please add a line in CHANGELOG to say that this behaviour was fixed?
@rickeylev, could you PTAL and see if something is missing from your point of view? IMHO this is good to merge as is, because there was a test and things started working better than they used to before the change.
Previously, `//tests/cc/current_py_cc_libs::python_libs_linking_test` failed on macOS because the bootstrapped toolchain's dylib had an incorrect LC_ID_DYLIB field set, pointing to a local directory on the Python standalone build host machine. To fix, add a small conditional to the Python repository rule patching the LC_ID_DYLIB field of the bootstrapped Python's dylib with its fully qualified file system path. Patching is carried out with macOS's own `install_name_tool`, which is part of the standard macOS dynamic linking toolchain. Since this needs macOS to be the host platform, restrict this change to macOS host systems only by checking the host OS name. Qualifies the mentioned test as executable on Mac, now only Windows linker errors are left to fix.
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I added a note to the changelog in the latest revision. Thanks for the speedy review! |
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Any more issues on your end @aignas @rickeylev ? |
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Doesn't setting this to an absolute path mean you get a non-hermetic build if you link this dylib? |
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Previously,
//tests/cc/current_py_cc_libs::python_libs_linking_testfailed on macOS because the bootstrapped toolchain's dylib had an incorrect LC_ID_DYLIB field set, pointing to a local directory on the Python standalone build host machine.To fix, add a small conditional to the Python repository rule patching the LC_ID_DYLIB field of the bootstrapped Python's dylib with its fully qualified file system path. Patching is carried out with macOS's own
install_name_tool, which is part of the standard macOS dynamic linking toolchain.Qualifies the mentioned test as executable on Mac, now only Windows linker errors are left to fix.