Add clang on the CI for windows and linux

Author: pifopi

.github/workflows/cpp-ci-serial-programs.yml

@@ -10,11 +10,25 @@ jobs:
       fail-fast: false
       matrix:
         os: [windows-2025, macos-13, ubuntu-24.04]
+        compiler: ['default', 'clang']
         qt_version: ['6.9.1']
         include:
-        - qt_version: '6.9.1'
-          qt_version_major: '6'
-          qt_modules: 'qtmultimedia qtserialport'
+          - qt_version: '6.9.1'
+            qt_version_major: '6'
+            qt_modules: 'qtmultimedia qtserialport'
+
+          - os: 'windows-2025'
+            compiler: 'clang'
+            cmake_additional_param: '-T ClangCL'
+
+          - os: 'ubuntu-24.04'
+            compiler: 'clang'
+            cmake_additional_param: '-DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++'
+
+        exclude:
+          - os: 'macos-13'
+            compiler: 'clang'
+            # Excluded because macos default toolset is already clang
 
     steps:
     - uses: actions/checkout@v4
@@ -44,7 +58,7 @@ jobs:
         cd Arduino-Source/SerialPrograms
         mkdir bin
         cd bin
-        cmake .. -DQT_MAJOR:STRING=${{ matrix.qt_version_major }}
+        cmake .. -DQT_MAJOR:STRING=${{ matrix.qt_version_major }} ${{ matrix.cmake_additional_param }}
         cmake --build . --config Release --parallel 10
     - name: Copy resources
       if: startsWith(matrix.os, 'windows')

SerialPrograms/CMakeLists.txt

@@ -2414,7 +2414,7 @@ if (EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/../../Internal/SerialPrograms/Internal0.
 endif()
 
 #extract opencv_world4110d.dll from archive on Windows Debug builds
-if (MSVC)
+if (WIN32)
     file(ARCHIVE_EXTRACT
       INPUT ${CMAKE_CURRENT_SOURCE_DIR}/../3rdPartyBinaries/opencv_world4110d.zip
       DESTINATION ${CMAKE_CURRENT_SOURCE_DIR}/../3rdPartyBinaries/
@@ -2429,7 +2429,7 @@ target_link_directories(SerialPrograms PRIVATE ../3rdPartyBinaries/)
 
 
 
-if (MSVC)
+if (WIN32)
     add_library(OpenCV_lib IMPORTED UNKNOWN)
     target_include_directories(SerialPrograms SYSTEM PRIVATE ../3rdParty/opencv-4.11.0/)
     set_target_properties(OpenCV_lib PROPERTIES
@@ -2492,14 +2492,15 @@ if (MSVC)
         PA_DPP
     )
 
-    target_compile_options(SerialPrograms PRIVATE /FAs /FaAssembly/ /MP /W4 /WX /external:anglebrackets /external:W0 /utf-8)
-    target_compile_options(SerialPrograms PRIVATE /wd5054)  # Deprecated enum arithemtic
-    target_compile_options(SerialPrograms PRIVATE /wd4505)  # unreferenced local function has been removed
+    if (MSVC)
+        target_compile_options(SerialPrograms PRIVATE /FAs /FaAssembly/ /MP /W4 /WX /external:anglebrackets /external:W0 /utf-8)
+        target_compile_options(SerialPrograms PRIVATE /wd5054)  # Deprecated enum arithemtic
+        target_compile_options(SerialPrograms PRIVATE /wd4505)  # unreferenced local function has been removed
 
-    set(ARCH_FLAGS_09_Nehalem       /W4)    # Dummy parameter
-    set(ARCH_FLAGS_13_Haswell       /arch:AVX2)
-    set(ARCH_FLAGS_17_Skylake       /arch:AVX512)
-    set(ARCH_FLAGS_19_IceLake       /arch:AVX512)
+        set(ARCH_FLAGS_09_Nehalem       /W4)    # Dummy parameter
+        set(ARCH_FLAGS_13_Haswell       /arch:AVX2)
+        set(ARCH_FLAGS_17_Skylake       /arch:AVX512)
+        set(ARCH_FLAGS_19_IceLake       /arch:AVX512)
 
     #   Run-time ISA dispatching
     target_compile_definitions(SerialPrograms PRIVATE PA_AutoDispatch_x64_08_Nehalem)