1 files changed, 25 insertions, 0 deletions
diff --git a/pkgs/development/compilers/elm/packages/ghc8_10/default.nix b/pkgs/development/compilers/elm/packages/ghc8_10/default.nix
index 3414dce836ee..f68e582b3d0b 100644
--- a/pkgs/development/compilers/elm/packages/ghc8_10/default.nix
+++ b/pkgs/development/compilers/elm/packages/ghc8_10/default.nix
@@ -6,6 +6,14 @@ self: pkgs.haskell.packages.ghc810.override {
       elmPkgs = rec {
         elmi-to-json = justStaticExecutables (overrideCabal
           (drv: {
+            version = "unstable-2021-07-19";
+            src = pkgs.fetchgit {
+              url = "https://github.com/stoeffel/elmi-to-json";
+              sha256 = "0vy678k15rzpsn0aly90fb01pxsbqkgf86pa86w0gd94lka8acwl";
+              rev = "6a42376ef4b6877e130971faf964578cc096e29b";
+              fetchSubmodules = true;
+            };
+
             prePatch = ''
               substituteInPlace package.yaml --replace "- -Werror" ""
               hpack
@@ -21,6 +29,23 @@ self: pkgs.haskell.packages.ghc810.override {
 
         elm-instrument = justStaticExecutables (overrideCabal
           (drv: {
+            version = "unstable-2020-03-16";
+            src = pkgs.fetchgit {
+              url = "https://github.com/zwilias/elm-instrument";
+              sha256 = "167d7l2547zxdj7i60r6vazznd9ichwc0bqckh3vrh46glkz06jv";
+              rev = "63e15bb5ec5f812e248e61b6944189fa4a0aee4e";
+              fetchSubmodules = true;
+            };
+            patches = [
+              # Update code after breaking change in optparse-applicative
+              # https://github.com/zwilias/elm-instrument/pull/5
+              (pkgs.fetchpatch {
+                name = "update-optparse-applicative.patch";
+                url = "https://github.com/mdevlamynck/elm-instrument/commit/c548709d4818aeef315528e842eaf4c5b34b59b4.patch";
+                sha256 = "0ln7ik09n3r3hk7jmwwm46kz660mvxfa71120rkbbaib2falfhsc";
+              })
+            ];
+
             prePatch = ''
               sed "s/desc <-.*/let desc = \"${drv.version}\"/g" Setup.hs --in-place
             '';