Try fix Doxygen action

.github/workflows/build-documentation.yml

@@ -33,13 +33,16 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup Pages
-        uses: actions/configure-pages@v3
+        uses: actions/configure-pages@v4
 
       - name: Install Doxygen
         run: |
           sudo apt-get update
           sudo apt-get install -y doxygen
 
+      - name: Configure CMake
+        run: cmake -B ${{github.workspace}}/build -DPODOFO_BUILD_DOC_ONLY=True
+
       - name: Generate Doxygen Documentation
         run: doxygen ${{ github.workspace }}/Doxyfile
 

CMakeLists.txt

@@ -24,15 +24,20 @@ set(PODOFO_VERSION_PATCH "0" CACHE STRING "Patchlevel part of podofo version num
 set(PODOFO_VERSION "${PODOFO_VERSION_MAJOR}.${PODOFO_VERSION_MINOR}.${PODOFO_VERSION_PATCH}")
 set(PODOFO_SOVERSION "3")
 
-#
-# Doxyfile
-#
-set(PROJECT_NUMBER "${PODOFO_VERSION}")
-configure_file(
-    ${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in
-    ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
-    @ONLY
-)
+find_package(Doxygen)
+if (DOXYGEN_FOUND)
+    set(PROJECT_NUMBER "${PODOFO_VERSION}")
+    configure_file(
+        ${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in
+        ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
+        @ONLY
+    )
+    # TODO: Add doxygen target
+endif()
+
+if(PODOFO_BUILD_DOC_ONLY)
+    return()
+endif()
 
 #
 # Main includes