Test CMake Build

Adding steps to test that the CMake build works as expected.

Author: etcwilde

.github/workflows/pull_request.yml

@@ -26,3 +26,20 @@ jobs:
       format_check_enabled: false
       unacceptable_language_check_enabled: false
       api_breakage_check_enabled: false
+
+  cmake_build:
+    name: CMake Build
+    runs-on: ubuntu-latest
+    container: swift:6.1-noble
+    steps:
+      - name: checkout sources
+        uses: actions/checkout@v1
+      - name: Install dependencies
+        shell: bash
+        run: apt update && apt install -y cmake ninja-build
+      - name: Configure Project
+        shell: bash
+        run: cmake -G 'Ninja' -B build -S . -DCMAKE_C_COMPILER=clang -DCMAKE_Swift_COMPILER=swiftc -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=YES
+      - name: Build Project
+        shell: bash
+        run: cmake --build build

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.29)
+cmake_minimum_required(VERSION 3.26...3.29)
 project(Subprocess LANGUAGES C Swift)
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules")