armips: build with Clang instead of GCC 10, run tests (#412719)

pkgs/development/compilers/armips/default.nix pkgs/by-name/ar/armips/package.nix

···
     sha256 = "sha256-L+Uxww/WtvDJn1xZqoqA6Pkzq/98sy1qTxZbv6eEjbA=";
   };
 
+  postPatch = ''
+    substituteInPlace CMakeLists.txt \
+      --replace-fail c++11 c++17
+  '';
+
   nativeBuildInputs = [ cmake ];
 
   installPhase = ''
···
     cp armips $out/bin
 
     runHook postInstall
+  '';
+
+  doCheck = true;
+
+  checkPhase = ''
+    runHook preCheck
+    ./armipstests ..
+    runHook postCheck
   '';
 
   meta = with lib; {

pkgs/top-level/all-packages.nix

···
     jdk = jdk8;
   };
 
-  armips = callPackage ../development/compilers/armips {
-    stdenv = gcc10Stdenv;
+  armips = callPackage ../by-name/ar/armips/package.nix {
+    stdenv = clangStdenv;
   };
 
   ballerina = callPackage ../development/compilers/ballerina {