add the "-rust" suffix if building with Rust is enabled

flake.nix

@@ -67,8 +67,8 @@
     in
     {
       devShells = forEachSupportedSystem ({ pkgs, commonInputs, llvmPkgs, llvmVersion, ... }: rec {
-        default = withGNU;
-        #default = withLLVM;
+        default = withLLVM;
+        #default = withGNU;
 
         withLLVM = (pkgs.mkShell.override { stdenv = llvmPkgs.stdenv; }) {
           inputsFrom = [ pkgs.linux_latest_with_llvm ];
@@ -88,7 +88,7 @@
             # because, for some reason, setting `LLVM` to '0' still counts... :/
             LLVM = 1;
             # build related flags (for the script)
-            BUILD_WITH_RUST = 0;
+            BUILD_WITH_RUST = 1;
 
             # needed by Rust bindgen
             LIBCLANG_PATH = pkgs.lib.makeLibraryPath [ llvmPkgs.libclang.lib ];

scripts/build.sh

@@ -14,9 +14,15 @@ else
     exit 1
 fi
 
+if [ -n "${BUILD_WITH_RUST:-}" ]; then
+    LOCALVERSION_SUFFIX='-rust'
+else
+    LOCALVERSION_SUFFIX=''
+fi
+
 CLEAN_BUILD="${CLEAN_BUILD:-0}"
 KERNEL_CONFIG="${KERNEL_CONFIG:-}"
-KERNEL_LOCALVERSION="-$(date +%Y.%m.%d.%H%M)"
+KERNEL_LOCALVERSION="-$(date +%Y.%m.%d.%H%M)${LOCALVERSION_SUFFIX}"
 BUILD_WITH_RUST="${BUILD_WITH_RUST:-0}"
 INSTALL_ZE_KERNEL="${INSTALL_ZE_KERNEL:-1}"
 FORCE_INSTALL_ZE_KERNEL="${FORCE_INSTALL_ZE_KERNEL:-0}"