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Diffstat (limited to 'pkgs/development/haskell-modules/make-package-set.nix')
| -rw-r--r-- | pkgs/development/haskell-modules/make-package-set.nix | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/pkgs/development/haskell-modules/make-package-set.nix b/pkgs/development/haskell-modules/make-package-set.nix index 95dac230cc5..3f339030de5 100644 --- a/pkgs/development/haskell-modules/make-package-set.nix +++ b/pkgs/development/haskell-modules/make-package-set.nix @@ -159,6 +159,13 @@ let # Generated from ${src} ${orig.preConfigure or ""} ''; + passthru = orig.passthru or {} // { + # When using callCabal2nix or callHackage, it is often useful + # to debug a failure by inspecting the Nix expression + # generated by cabal2nix. This can be accessed via this + # cabal2nixDeriver field. + cabal2nixDeriver = src; + }; }); in package-set { inherit pkgs stdenv callPackage; } self // { |