Merge pull request #232498 from trofi/soxr-dev-output

soxr: extract dev output

pkgs/applications/misc/audio/soxr/default.nix

···
     ./arm64-check.patch
   ];
 
-  outputs = [ "out" "doc" ]; # headers are just two and very small
+  outputs = [ "out" "dev" "doc" ];
 
   nativeBuildInputs = [ cmake ];