Move attributes in ompss2 clang derivation to passthru

To support the new instrumentation for HWC it would be useful to already
build nOS-V with PAPI support enabled. The enablePapi switch allows it
to be disabled with `nosv.override { enablePapi = false; }`.

Reviewed-by: Aleix Roca Nonell <aleix.rocanonell@bsc.es>
Tested-by: Rodrigo Arias Mallo <rodrigo.arias@bsc.es>

pkgs/llvm-ompss2/clang.nix

@@ -43,19 +43,21 @@ let
 
   source = if (useGit) then git else release;
 
-in stdenv.mkDerivation rec {
+in stdenv.mkDerivation {
   pname = "clang-ompss2";
   inherit (source) src version;
 
   enableParallelBuilding = true;
-  isClang = true;
 
   passthru = {
     CC = "clang";
     CXX = "clang++";
-  };
 
-  isClangWithOmpss = true;
+    isClang = true;
+    isClangWithOmpss = true;
+
+    inherit gcc zlib;
+  };
 
   nativeBuildInputs = [ zlib ];
 

pkgs/nosv/default.nix

@@ -6,6 +6,8 @@
 , pkg-config
 , numactl
 , hwloc
+, papi
+, enablePapi ? true
 , cacheline ? 64 # bits
 , ovni ? null
 , useGit ? false
@@ -56,5 +58,5 @@ in
       numactl
       hwloc
       ovni
-    ];
+    ] ++ lib.optionals enablePapi [ papi ];
   }