build: require LLVM 22

Author: LindonAliu

.github/workflows/linux-asserts.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        llvm-version: [21]
+        llvm-version: [22]
     env:
       LLVM_VERSION: ${{ matrix.llvm-version }}
     steps:

.github/workflows/linux_smoke-tests.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        llvm-version: [21]
+        llvm-version: [22]
     env:
       LLVM_VERSION: ${{ matrix.llvm-version }}
       LLVM_BIN: /usr/lib/llvm-${{ matrix.llvm-version }}/bin

.github/workflows/macOS_smoke-tests.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        llvm-version: [21]
+        llvm-version: [22]
     env:
       LLVM_VERSION: ${{ matrix.llvm-version }}
     steps:

.github/workflows/sonarQube.yml

@@ -9,9 +9,9 @@ jobs:
     runs-on: ubuntu-latest
     env:
       BUILD_WRAPPER_OUT_DIR: build_wrapper_output_directory # Directory where build-wrapper output will be placed
-      LLVM_VERSION: 21
-      LLVM_DIR: /usr/lib/llvm-21/lib/cmake/llvm
-      LLVM_BIN: /usr/lib/llvm-21/bin
+      LLVM_VERSION: 22
+      LLVM_DIR: /usr/lib/llvm-22/lib/cmake/llvm
+      LLVM_BIN: /usr/lib/llvm-22/bin
     steps:
       - uses: actions/checkout@v4
         with:

CMakeLists.txt

@@ -13,16 +13,16 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 project(Glu CXX C)
 
-set(GLU_LLVM_VERSION "21" CACHE STRING "LLVM major version to use (supported: 21)")
+set(GLU_LLVM_VERSION "22" CACHE STRING "LLVM major version to use (supported: 22)")
 
-if(GLU_LLVM_VERSION STREQUAL "21")
-    set(GLU_LLVM_VERSION_REQUIRED "21.1")
-    set(GLU_LLVM_GIT_TAG "llvmorg-21.1.6")
-elseif(GLU_LLVM_VERSION STREQUAL "22")
+if(GLU_LLVM_VERSION STREQUAL "22")
     set(GLU_LLVM_VERSION_REQUIRED "22.1")
     set(GLU_LLVM_GIT_TAG "llvmorg-22.1.0")
 else()
-    message(FATAL_ERROR "Unsupported LLVM version '${GLU_LLVM_VERSION}'. Supported versions: 21")
+    message(FATAL_ERROR
+        "Unsupported LLVM version '${GLU_LLVM_VERSION}'. Supported versions: 22. "
+        "If you need LLVM 19, 20, or 21 support, please use an older Glu release."
+    )
 endif()
 
 message(STATUS "Configuring Glu with LLVM ${GLU_LLVM_VERSION} (find_package >= ${GLU_LLVM_VERSION_REQUIRED})")