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| author | kira78 <kira78@users.noreply.github.com> | 2021-07-04 20:37:35 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-07-04 17:37:35 -0700 |
| commit | 4f49fa8315024014727ebe5347f506beb56b668e (patch) | |
| tree | 290a4768f0675ba87d0f1dd6dca24b8f1412b26d /mesonbuild/compilers/cpp.py | |
| parent | 0d0f2cdafd7597ff84baf7a4790f3f016fe2337f (diff) | |
| download | meson-4f49fa8315024014727ebe5347f506beb56b668e.zip meson-4f49fa8315024014727ebe5347f506beb56b668e.tar.gz meson-4f49fa8315024014727ebe5347f506beb56b668e.tar.bz2 | |
dependencies: Deterministic LLVM compile and link arg ordering (#8959)
* dependencies: Deterministic LLVM compile and link arg ordering
In LLVMDependencyConfigTool, the members compile_args and required_modules are
either converted to or stored as sets, which do not have a stable ordering. This
results in nondeterministic builds, particularly with required_modules causing
the order in which the LLVM libraries are linked in to the output binaries to
change across independent builds. As any guarantee about ordering for
compile_args is lost by being converted from a list to a set and back, and the
modules added to required_modules was even already sorted once, sort both when
converting them to lists.
* Use mesonlib.OrderedSet instead of sorting the sets.
Co-authored-by: Kaelyn Takata <kaelyn.alexi@protonmail.com>
Diffstat (limited to 'mesonbuild/compilers/cpp.py')
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