Oskari Pirhonen <xxc3ncoredxx@gmail.com> writes: > [[PGP Signed Part:Undecided]] > On Tue, Apr 18, 2023 at 16:07:45 +0200, Florian Weimer wrote: >> Gentoo has been fixing various packages for building with Clang, which >> covers a superset of the issues that need to be addressed: >> >> [TRACKER] Support LLVM/Clang as alternative system compiler >> <https://bugs.gentoo.org/showdependencytree.cgi?id=408963&hide_resolved=0> >> >> IIRC, Gentoo has its own mechanism to detect silent build breakage, but >> I think it's mostly focused on autoconf, so it's less comprehensive, and >> also fixes the stuff that is actually relevant to the distribution. >> > > For Gentoo, I wrote (with some help from others) this QA check [1] which > Portage uses to scan Autoconf, CMake, and Meson config logs for implicit > function declarations. It's inspired by a similar bit of code from the > Macports folks [2] and written with both Clang and GCC in mind. > > It should be possible to adapt for use by others if you feed it the > right dirs and replace a few functions (`has` and `eqa*` OTTOMH) since > nothing about the core logic is Portage-specific. > > Although not so much for silent failures, but maybe still useful for > someone, there's also this QA check [3] which is used to detect other > warnings at build-time. Note for others: this is distinct from the initial approach we took (and are still using) with compiler wrapping and diffing old/new config.log which Florian was referring to. > > - Oskari > best, sam
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