mirror of
https://github.com/simplex-chat/haskell.nix.git
synced 2026-06-03 09:17:32 +00:00
John A. Lotoski
09526c8555
* Spelling and typo fixes in doc and code comments * Trailing whitespace or whitespace only truncation * readTheDocs formatting corrections
1.7 KiB
1.7 KiB
Mapping non-Haskell dependencies to Nixpkgs
Cabal files may contain dependencies to external non-Haskell dependencies via:
If there is a pkgs attribute in Nixpkgs that matches the name given
in the Cabal file, then it will be added as a dependency (see the
output of cabal-to-nix). Otherwise, there needs to be a mapping from
Cabal file names (decided by the package author) to Nix package
identifiers.
Nixpkgs overlay
The user may solve it by themself by overriding Nixpkgs and adding a package alias. For example:
nixpkgs.overlays = [
(self: super: {
icuuc = self.icu;
icui18n = self.icu;
icudata = self.icu;
})
];
Mapping in Haskell.nix
Alternatively, if the name is commonly used, an alias can be added to the Haskell.nix sources, so that it's solved for all users.
lib/pkgconf-nixpkgs-map.nix- forpkgconfig-dependslib/system-nixpkgs-map.nix- forbuild-tool-depends,frameworks,extra-libraries, etc.
!!! tip "Open a PR" Please go ahead and open a pull request to improve the package mappings.