All six entries in the original icon.ico used PNG compression inside
the ICO container. Older versions of llvm-rc (used during Windows
cross-compilation) cannot parse PNG-compressed ICO entries, causing
the resource compilation step to fail since PR #1.
Regenerated with ImageMagick using -compress None to force BMP format
for all sizes including 256x256. Reverts the LLVM pinning attempts
as they are no longer needed.
clang-cl-18 does not have a versioned symlink in /usr/bin on this
runner, causing update-alternatives to fail and abort the step before
llvm-rc was ever configured. Prepending /usr/lib/llvm-18/bin to PATH
is more robust and ensures all LLVM 18 tools (clang-cl, lld-link,
llvm-rc) are resolved correctly without relying on symlink names.
Older llvm-rc versions cannot handle PNG-compressed ICO entries,
causing the Windows build to fail. Pinning to LLVM 18 and setting
up alternatives ensures llvm-rc, clang-cl, and lld-link all resolve
to a version that handles the icon resource correctly.
hikari
