build: fix LLVM 18 build on GCC 15 #4656
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XeniaLu
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TianlongLiang,
loganek,
lum1n0us,
no1wudi,
wenyongh,
xujuntwt95329 and
yamt
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See also: referenced LLVM pull requests in patch files.
XeniaLu
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Is this due to some compilation errors raised by GCC 15(or higher only)? Do lower versions of GCC, like GCC 11, encounter the same issues under specific conditions? |
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It's only happening on GCC 15 (and higher, and potentially some corresponding versions of clang): llvm/llvm-project#101761 and llvm/llvm-project#123320 |
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Will lower versions of GCC, like GCC 11 (default on Ubuntu 22.04), successfully compile LLVM libraries after applying those (llvm) patches? |
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Yes, it builds on Ubuntu 22.04 (GCC 11) with the same patches. |
| print(f"cd {dst_dir} && {GIT_CLONE_CMD}") | ||
| subprocess.check_output(shlex.split(GIT_CLONE_CMD), cwd=dst_dir) | ||
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| patch_dir = pathlib.Path(__file__).parent.joinpath("llvm-patches").resolve() |
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i suspect this should be target dependent.
while we are currently using the similar version (llvm-18) for all targets, it has not always been the case.
and it will unlikely be the case in future.
cf. #4654
3 participants
See also: referenced LLVM pull requests in patch files.