diff --git a/pkgs/pocl/default.nix b/pkgs/pocl/default.nix
index 0f683ce..fdf4c13 100644
--- a/pkgs/pocl/default.nix
+++ b/pkgs/pocl/default.nix
@@ -103,11 +103,10 @@ stdenv.mkDerivation (finalAttrs: {
     (lib.cmakeBool "ENABLE_TESTS" finalAttrs.finalPackage.doCheck)
 
     (lib.cmakeBool "ENABLE_RELOCATION"    true)
-    (lib.cmakeBool "ENABLE_POCL_BUILDING" false)
+    (lib.cmakeBool "ENABLE_POCL_BUILDING"   true)
+    (lib.cmakeBool "POCL_ICD_ABSOLUTE_PATH" true)
 
     (lib.cmakeBool "ENABLE_TBB_DEVICE" enableTBB)
-    (lib.cmakeBool "ENABLE_OVNI"       enableOVNI)
-    (lib.cmakeBool "ENABLE_NOSV"       enableNOSV)
     (lib.cmakeBool "ENABLE_ICD"        enableICD)
     (lib.cmakeBool "ENABLE_HWLOC"      enableHWLOC)
     (lib.cmakeBool "ENABLE_LTTNG"      enableLTTNG)
@@ -117,6 +116,9 @@ stdenv.mkDerivation (finalAttrs: {
 
     # avoid the runtime linker pulling in a different llvm e.g. from graphics drivers
     (lib.cmakeBool "STATIC_LLVM" staticLLVM)
+  ] ++ lib.optionals (enableNOSV || enableOVNI) [
+    (lib.cmakeBool "ENABLE_NOSV"       enableNOSV)
+    (lib.cmakeBool "ENABLE_OVNI"       enableOVNI)
   ] ++ lib.optionals (!isCross && enableDistroVariants) [
     (lib.cmakeFeature "KERNELLIB_HOST_CPU_VARIANTS" "distro") # TODO: check if we can do it when cross compiling
   ] ++ lib.optionals isCross [
@@ -136,6 +138,7 @@ stdenv.mkDerivation (finalAttrs: {
   preConfigure = ''
     cmakeFlagsArray+=(
       -DEXTRA_HOST_LD_FLAGS="${lib.escapeShellArg (builtins.readFile "${stdenv.cc}/nix-support/cc-ldflags")}"
+      -DEXTRA_KERNEL_FLAGS="${lib.escapeShellArg (builtins.readFile "${stdenv.cc}/nix-support/cc-ldflags")}"
     )
   '' + lib.optionalString stdenv.hostPlatform.isRiscV ''
      cmakeFlagsArray+=(