adaptivecpp: improve args passed to tests

pkgs/development/compilers/adaptivecpp/tests.nix

@@ -1,8 +1,10 @@
 {
+  lib,
   stdenv,
   adaptivecpp,
   # after cursory testing it seems like this isn't really useful, but if errors pop up, maybe look into restricting the targets
-  #targets ? "",
+  targetsBuild ? null,
+  targetsRun ? null,
 }:
 stdenv.mkDerivation (finalAttrs: {
   pname = "${adaptivecpp.pname}-tests";
@@ -15,11 +17,14 @@ stdenv.mkDerivation (finalAttrs: {
 
   sourceRoot = "${adaptivecpp.src.name}/tests";
 
-  cmakeFlags = [
-    # see above
-    #"-DACCP_TARGETS=\"${targets}\""
-    "-DAdaptiveCpp_DIR=${adaptivecpp}/lib/cmake/AdaptiveCpp"
-  ];
+  cmakeFlags =
+    [
+      # see above
+      "-DAdaptiveCpp_DIR=${adaptivecpp}/lib/cmake/AdaptiveCpp"
+    ]
+    ++ lib.optionals (targetsBuild != null) [
+      "-DACCP_TARGETS=\"${targetsBuild}\""
+    ];
 
   doCheck = true;
   checkPhase = ''
@@ -27,6 +32,7 @@ stdenv.mkDerivation (finalAttrs: {
     mkdir home
     export HOME=`pwd`/home
 
+    ${lib.strings.optionalString (targetsRun != null) "export ACPP_VISIBILITY_MASK=\"${targetsRun}\""}
     ./sycl_tests
   '';