Describe the bug

The build fails, see https://hydra.nixos.org/build/124911367/nixlog/1/tail

I haven't succeeded in bisecting this, using stdenv = clangStdenv "fixes" the issue with warnings such as:

  clang-7: warning: argument unused during compilation: '-Xarch_x86_64 -include/build/source/build/CMakeFiles/nheko.dir/cmake_pch_x86_64.hxx'
   [-Wunused-command-line-argument]

Instead of the errors, but I'm perplexed as to what could be the source of this issue.

cc @Ekleog @fpletz

Maintainer information:

# a list of nixpkgs attributes affected by the problem
attribute: nheko
# a list of nixos modules affected by the problem
module: