Bug#1022169: llvm-toolchain-15: FTBFS on mips*el: static assertion failed: struct_kernel_stat_sz == sizeof(stat)

Source: llvm-toolchain-15
Version: 1:15.0.2-1
Severity: serious
Tags: ftbfs
Justification: fails to build from source, making mesa unbuildable
User: [email protected]
Usertags: mipsel mips64el
X-Debbugs-Cc: [email protected], [email protected]
Control: affects -1 + src:mesa

Quoting from mips64el buildd logs, but mipsel has a similar failure:

> /<<PKGBUILDDIR>>/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_linux.cpp:67:1: error: static assertion failed due to requirement 'struct_kernel_stat_sz == sizeof(stat)':
> COMPILER_CHECK(struct_kernel_stat_sz == sizeof(struct stat));

Strictly speaking this is not a regression because llvm-toolchain-15 was
never built successfully on mips*el, but I think it should be treated as
RC anyway, because older llvm-toolchain-* were buildable on mips*el (and
mesa is already using llvm-toolchain-15, making it a key package).

    smcv

-- System Information:
Debian Release: bookworm/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'stable-security'), (500, 'oldstable-debug'), (500, 'oldoldstable'), (500, 'buildd-unstable'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (500, 'oldstable'), (1, 'experimental-debug'), (1, 'buildd-experimental'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.0.0-1-amd64 (SMP w/4 CPU threads; PREEMPT)
Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8), LANGUAGE=en_GB:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled