Comment 7 for bug 2064187

FTR, the fix in Debian/Oracular is at https://launchpad.net/ubuntu/+source/llvm-toolchain-18/1:18.1.5-1 and https://launchpad.net/ubuntu/+source/llvm-toolchain-18/1:18.1.5-3 (LP show riscv64 is failed on version 1:18.1.5-3 but that's not packaging issue, rather LP builder issue. This version is successfully to be built on Debian/riscv64 https://buildd.debian.org/status/logs.php?pkg=llvm-toolchain-18&arch=riscv64)

The relevant commits that need to be backported are

https://salsa.debian.org/pkg-llvm-team/llvm-toolchain/-/commit/7204c780c8756378921cd14cb73d53794f81f3f6
https://salsa.debian.org/pkg-llvm-team/llvm-toolchain/-/commit/72950dbd0f05bd9fe076535e14de522713be98f8
https://salsa.debian.org/pkg-llvm-team/llvm-toolchain/-/commit/898f4588144f8ede8605b7140f8e7f64ee4b0f67