Building GCC 1.27: Running a 1988 Compiler on Modern Ubuntu

Building GCC 1.27 (2019)

I successfully built GCC 1.27, the first version supporting x86, on a 64-bit Ubuntu system by adapting Mikhail Maltsev's patches. Despite challenges with system headers and debug formats, the ancient compiler works surprisingly well with modern tools. I documented the process of installing 32-bit support, configuring symbolic links, and performing a multi-stage build to verify the compiler's self-consistency.