Fix musl test configuring openssl as linux-x86_64 (#490)

See: NixOS/nixpkgs#82708

Author: hamishmack

overlays/default.nix

@@ -12,6 +12,7 @@
     (import ./ghc-packages.nix)
     (import ./windows.nix)
     (import ./armv6l-linux.nix)
+    (import ./musl.nix)
     # Restore nixpkgs haskell and haskellPackages
     (_: super: { inherit (super.haskell-nix-super) haskell haskellPackages; })
 ]

overlays/musl.nix

@@ -0,0 +1,10 @@
+self: super: super.lib.optionalAttrs super.stdenv.hostPlatform.isMusl {
+  # On nixpkgs 19.09 openssl is configured as `linux-generic64` instead
+  # of `linux-x86_64` and as a result the `asm` parts of of openssl
+  # are not built.  Because the `no_asm` configure flag is also not passed
+  # the c versions of the functions are also not included.
+  openssl = super.openssl.overrideAttrs (attrs:
+    super.lib.optionalAttrs super.stdenv.hostPlatform.isx86_64 {
+      configureScript = "./Configure linux-x86_64";
+    });
+}

release.nix

@@ -75,11 +75,7 @@ in allJobs // {
        ++ collect isDerivation allJobs.R1903.x86_64-pc-mingw32
        ++ collect isDerivation allJobs.R1909.x86_64-w64-mingw32
        ++ collect isDerivation allJobs.R1903.x86_64-unknown-linux-musl
-       ++ collect isDerivation (allJobs.R1909.x86_64-unknown-linux-musl
-         // {
-           # Exclude failing test (openssl issue in nixpkgs R1909 with musl)
-           tests = filterAttrs (n: _: n != "fully-static") allJobs.R1909.x86_64-unknown-linux-musl.tests;
-         });
+       ++ collect isDerivation allJobs.R1909.x86_64-unknown-linux-musl;
     };
   }