nix/ci: add and enable llvm-18

Author: JakeHillion

.github/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
     runs-on: 16-core-ubuntu
     strategy:
       matrix:
-        llvm_version: [16, 17]
+        llvm_version: [16, 17, 18]
     steps:
     - uses: actions/checkout@v4.1.7
     - uses: cachix/install-nix-action@v27

CMakeLists.txt

@@ -224,8 +224,8 @@ find_package(LLVM ${LLVM_REQUESTED_VERSION} REQUIRED CONFIG)
 message(STATUS "Found LLVM ${LLVM_PACKAGE_VERSION}")
 message(STATUS "Using LLVMConfig.cmake in: ${LLVM_DIR}")
 
-if((${LLVM_VERSION_MAJOR} VERSION_LESS 16) OR (${LLVM_VERSION_MAJOR} VERSION_GREATER 17))
-  message(SEND_ERROR "Object Introspection currently requires an LLVM version between 16 and 17!")
+if((${LLVM_VERSION_MAJOR} VERSION_LESS 16) OR (${LLVM_VERSION_MAJOR} VERSION_GREATER 18))
+  message(SEND_ERROR "Object Introspection currently requires an LLVM version between 16 and 18!")
 endif()
 
 find_package(Clang REQUIRED CONFIG)

flake.nix

@@ -21,7 +21,7 @@
     flake-utils.lib.eachSystem [ flake-utils.lib.system.x86_64-linux ] (
       system:
       let
-        defaultLlvmVersion = 17;
+        defaultLlvmVersion = 18;
         pkgs = import nixpkgs { inherit system; };
 
         drgnSrc = pkgs.fetchFromGitHub {
@@ -117,12 +117,14 @@
 
           oid-llvm16 = mkOidPackage 16;
           oid-llvm17 = mkOidPackage 17;
+          oid-llvm18 = mkOidPackage 18;
         };
         devShells = rec {
           default = self.devShells.${system}."oid-llvm${toString defaultLlvmVersion}";
 
           oid-llvm16 = mkOidDevShell 16;
           oid-llvm17 = mkOidDevShell 17;
+          oid-llvm18 = mkOidDevShell 18;
         };
 
         apps.default = {