I did translate the x86 assembly code into NASM dialect to remove the dependency on asmc-linux. I have submitted a pull request to upstream but unfortunately didn't receive any response yet. I thought this might be of interrest for the maintainers of the 7zip package. Github PR: https://github.com/ip7z/7zip/pull/241 Branch with new ASM files and modified Makefiles: https://github.com/darealshinji/7zip/tree/nasm-2