Yeah, nix's remove-references-to does exactly that, it replaces the prefix with something deterministic (bunch of zeroes IIRC). I know about the gcc (and recent

Yeah, nix's remove-references-to does exactly that, it replaces the prefix with something deterministic (bunch of zeroes IIRC). I know about the gcc (and recently clang's) options to map the prefix, but the command line is annoying to use. Wish there was simply -relative-prefix or something and it would be the default. The nice thing about nix is that it will detect any references to /nix/store path that shouldn't be there and fail the build, so you immediately know if there is reproducibility problem related to the paths.