maintainer-feedback requested: [Bug 275 014] audio/linux-c7-alsa-plugins-oss: fails t o build with -enable-trivial-auto-var-init-ze ro-knowing-it-will-be-removed-from-clang
Date: Fri, 10 Nov 2023 17:58:54 UTC
Bugzilla Automation <bugzilla@FreeBSD.org> has asked freebsd-emulation (Nobody) <emulation@FreeBSD.org> for maintainer-feedback: Bug 275014: audio/linux-c7-alsa-plugins-oss: fails to build with -enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275014 --- Description --- I build my own packages with poudriere. I recently globally added the clang `-enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang` flag and that broke `audio/linux-c7-alsa-plugins-oss` from building. The other 419 packages I build had no problem. The error is: ``` checking for gcc... gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... Segmentation fault (core dumped) configure: error: in `/wrkdirs/usr/ports/audio/linux-c7-alsa-plugins-oss/work/32/alsa-plugins-1.1.6' : configure: error: cannot run C compiled programs. If you meant to cross compile, use `--host'. See `config.log' for more details *** Error code 77 Stop. make: stopped in /usr/ports/audio/linux-c7-alsa-plugins-oss ``` The `-enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang` flag has a dubious name I agree, but that's only because FreeBSD 13.2's clang 14 is rather old. In newer clang the flag was promoted from experimental to fully legit and is now named `-ftrivial-auto-var-init=zero`. See https://discourse.llvm.org/t/making-ftrivial-auto-var-init-zero-a-first-class-o ption/55143 My reason for using the flag is the same as others: security. Android, Chrome OS, Windows, Apple, and others use this in production builds too. From the error output, I would guess that something is building and running a C program to test something, and that program is crashing.