[CMake] Support standalone builds of Clang #18460
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If Clang was installed standalone (in particular, not in the LLVM tree), use the CLANG_INSTALL_PREFIX variable to indicate where it is. This is the same as 02b0dc1, but only changing the behavior when `CLANG_INSTALL_PREFIX` is set without any other changes. This should be a much less risky change (see also the revert in 6179736).
This was referenced Apr 22, 2025
Merged
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I disagree with merging any build system related work at this point. |
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Sure, this can also be done after the branching of 6.36! |
Test Results 17 files 17 suites 3d 22h 2m 36s ⏱️ Results for commit 79840fe. |
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If Clang was installed standalone (in particular, not in the LLVM tree), use the CLANG_INSTALL_PREFIX variable to indicate where it is.
This is the same as 02b0dc1, but only changing the behavior when
CLANG_INSTALL_PREFIXis set without any other changes. This should be a much less risky change (see also the revert in 6179736).Follows up on:
builtin_clang=OFF#18386