coldfusionjp/amazonlinux-clang repository overview

The Docker images available here provide a fully working two-stage bootstrapped LTO build of clang, lld, and libc++ built directly from the sources available on GitHub at https://github.com/llvm/llvm-project⁠, based on an Amazon Linux image.

The compiler binaries and all required includes and libraries are installed using a root prefix of /usr/local/llvm. Alternatives are setup to allow clang (and clang++) to function as the system compiler.

Note that as clang itself still depends on libgcc/crtbegin/crtend for linking, gcc72 (just the C compiler) is a required dependency and has been preinstalled in these images.

clang and lld version check:

bash-4.2# clang++ -v
clang version 8.0.1 
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-amazon-linux/7
Found candidate GCC installation: /usr/lib/gcc/x86_64-amazon-linux/7
Selected GCC installation: /usr/bin/../lib/gcc/x86_64-amazon-linux/7
Candidate multilib: .;@m64
Selected multilib: .;@m64
bash-4.2# ld -v 
LLD 8.0.1 (compatible with GNU linkers)
bash-4.2# 

The Dockerfiles that were used to build these images are available from: https://github.com/coldfusionjp/build-clang-llvm⁠.