<civodul>or just that the binary embeds that file name?
<gzg`>civodul: I haven't checked into it yet, but I'd assume the latter -- because wouldn't guix probably spot the former?
<gzg`>The error in the log is to the extent of ''CMake Error at cmake_install.cmake:72 (FILE): file INSTALL cannot copy file "/tmp/nix-build-slim-1.3.3.drv-0/slim-1.3.3/slim.conf" to "/etc/slim.conf". ''
<gzg`>But that still seems pretty vague, to me at least.
<civodul>well it tries to write to /etc/slim.conf, which it cannot do
<civodul>so either there's a CMake flag similar to --sysconfdir, or that has to be patched