My project is using Rust together with clang and the address sanitizer. Both the build orchestration and the linker invocations are done by cargo which is based on LLVM 18.1.7.

I install llvm via apt.llvm.org and when I do that now I get version 18.1.8, I found no way to pin it to a specific LLVM version. To me it seems that the paths of the static ASAN libraries have changed with the newest patch release, I get the following error:

ld: error: cannot open /usr/lib/llvm-18/lib/clang/18/lib/linux/libclang_rt.asan_static-x86_64.a: No such file or directory
ld: error: cannot open /usr/lib/llvm-18/lib/clang/18/lib/linux/libclang_rt.asan-x86_64.a: No such file or directory

But in reality the libraries are now in /usr/lib/llvm-18/lib/clang/18/lib/x86_64-pc-linux-gnu under different names.

Such a breaking change is surprising for a patch release, especially if there is no real possibility to install an older version.