gcc prefixes: Static linking LLVM may produce corrupt binaries

[pal1000]

Description / Steps to reproduce the issue

This is known to reproduce with mingw-w64-mesa at least:

1. Change -Dsshared-llvm to disabled in mingw-w64-mesa/PKGBUILD;
2. Build with makepkg-mingw as usual.

Expected behavior

Build should succeed or produce no extra errors and warnings compared to when LLVM is dynamically linked.

Actual behavior

Build succeeds in theory but there are linker complaints.
Resulting binaries are corrupt and unusable.

mesa-dist-win build script log

mesa-llvm-static-gcc.txt

makepkg-mingw should reproduce it too except for MINGW32 prefix as it has LLVM support disabled in PKGBUILD.

Verification

• I have verified that my MSYS2 is up-to-date before submitting the report (see https://www.msys2.org/docs/updating/)

Windows Version

MINGW64_NT-10.0-20348

MINGW environments affected

• MINGW64
• MINGW32
• UCRT64
• CLANG64
• CLANGARM64

Are you willing to submit a PR?

This far exceeds my programing skill.