Another try

Signed-off-by: Geoff Hutchison <[email protected]>

.github/workflows/build_windows.yml

@@ -12,7 +12,6 @@ on: [push, pull_request, workflow_dispatch]
 env:
   QT_VERSION: 5.15.2
   FEATURES: -DBUILD_GPL_PLUGINS=ON -DWITH_COORDGEN=OFF -DUSE_VTK=ON -DUSE_3DCONNEXION=ON
-  CACHE: -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -40,7 +39,7 @@ jobs:
 
     - name: Install Dependencies (Windows)
       if: runner.os == 'Windows'
-      run: choco install ninja ccache
+      run: choco install ninja
 
     - name: Checkout openchemistry
       uses: actions/checkout@v4
@@ -96,9 +95,6 @@ jobs:
       with:
         arch: x64
 
-    - name: Install ccache
-      uses: hendrikmuhs/[email protected]
-
     - name: Grab cache files
       uses: actions/cache@v4
       if: runner.os != 'Windows'
@@ -111,12 +107,12 @@ jobs:
       run: |
         if [ ! -d "${{ runner.workspace }}/build" ]; then mkdir "${{ runner.workspace }}/build"; fi
         cd "${{ runner.workspace }}/build"
-        CC=${{matrix.config.cc}} CXX=${{matrix.config.cxx}} cmake $GITHUB_WORKSPACE ${{env.FEATURES}} ${{env.CACHE}} -DCMAKE_BUILD_TYPE=${{matrix.config.build_type}} ${{matrix.config.cmake_flags}}
+        CC=${{matrix.config.cc}} CXX=${{matrix.config.cxx}} cmake $GITHUB_WORKSPACE ${{env.FEATURES}} -DCMAKE_BUILD_TYPE=${{matrix.config.build_type}} ${{matrix.config.cmake_flags}}
       shell: bash
 
     - name: Build
       run: |
-        CC=${{matrix.config.cc}} CXX=${{matrix.config.cxx}} CMAKE_C_COMPILER_LAUNCHER=ccache CMAKE_CXX_COMPILER_LAUNCHER=ccache cmake --build . --config ${{matrix.config.build_type}} ${{matrix.config.build_flags}}
+        CC=${{matrix.config.cc}} CXX=${{matrix.config.cxx}} cmake --build . --config ${{matrix.config.build_type}} ${{matrix.config.build_flags}}
       shell: bash
       working-directory: ${{ runner.workspace }}/build
 

CMakeLists.txt

@@ -41,26 +41,13 @@ if(MSVC)
   # https://docs.microsoft.com/en-us/cpp/build/reference/zc-cplusplus?view=msvc-160
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /Zc:__cplusplus")
 
-  # Use ccache if available
-  # tips from https://github.com/ccache/ccache/wiki/MS-Visual-Studio#usage-with-cmake
-  find_program(ccache_exe ccache)
-  if(ccache_exe)
-    file(COPY_FILE
-      ${ccache_exe} ${CMAKE_BINARY_DIR}/cl.exe
-      ONLY_IF_DIFFERENT)
-
-    # By default Visual Studio generators will use /Zi which is not compatible
-    # with ccache, so tell Visual Studio to use /Z7 instead.
-    message(STATUS "Setting MSVC debug information format to 'Embedded'")
-    set(CMAKE_MSVC_DEBUG_INFORMATION_FORMAT "$<$<CONFIG:Debug,RelWithDebInfo>:Embedded>")
-
-    set(CMAKE_VS_GLOBALS
-      "CLToolExe=cl.exe"
-      "CLToolPath=${CMAKE_BINARY_DIR}"
-      "UseMultiToolTask=true"
-      "DebugInformationFormat=OldStyle"
-    )
-  endif()
+  message(STATUS "Setting MSVC debug information format to 'Embedded'")
+  set(CMAKE_MSVC_DEBUG_INFORMATION_FORMAT "$<$<CONFIG:Debug,RelWithDebInfo>:Embedded>")
+
+  set(CMAKE_VS_GLOBALS
+    "UseMultiToolTask=true"
+    "DebugInformationFormat=OldStyle"
+  )
 endif()
 
 option(ENABLE_TESTING "Enable testing and building the tests." OFF)