static-stack: Fix compile error of unix-compat-0.5.1 with musl. Fixes #79

Author: nh2

.buildkite/pipeline.yml

@@ -48,10 +48,17 @@ steps:
   # Stack via stack2nix
 
   - label: static-stack
+    # TODO: Remove the override of unix-compat below once that's available in stack
     command: |
+      set -eu -o pipefail
+
       cd static-stack/
       mkdir -p static-stack-test-dir
       curl -L https://github.com/commercialhaskell/stack/archive/v2.1.3.tar.gz | tar -xz -C static-stack-test-dir
       # Use lts-12 because ghc822 is no longer in nixpkgs
       cp static-stack-test-dir/stack-*/stack-lts-12.yaml static-stack-test-dir/stack-*/stack.yaml
+
+      echo "Overriding point release of unix-compat, see https://github.com/nh2/static-haskell-nix/issues/79"
+      perl -pi -e 's/^packages:/packages:\n- unix-compat-0.5.2\@rev:0/g' static-stack-test-dir/stack-*/snapshot-lts-12.yaml
+
       $(nix-build --no-link -A fullBuildScript --argstr stackDir $PWD/static-stack-test-dir/stack-*)

static-stack/default.nix

@@ -16,7 +16,7 @@ let
   stack2nix-script = import ../static-stack2nix-builder/stack2nix-script.nix {
     pkgs = pkgs;
     stack-project-dir = stackDir; # where stack.yaml is
-    hackageSnapshot = "2019-08-17T00:00:00Z"; # pins e.g. extra-deps without hashes or revisions
+    hackageSnapshot = "2020-02-08T00:00:00Z"; # pins e.g. extra-deps without hashes or revisions
   };
 
   static-stack2nix-builder = import ../static-stack2nix-builder/default.nix {