[CMake] Doxygen ignores existens of doc/doxygen/html/index.html in src

cmake/modules/DuneDoxygen.cmake

@@ -47,26 +47,20 @@ MACRO (add_doxygen_target)
     set(DOXYSTYLE_FILE ${CMAKE_CURRENT_SOURCE_DIR}/Doxystyle)
   endif("${CMAKE_PROJECT_NAME}" STREQUAL "dune-common")
   message(STATUS "Using scripts from ${SCRIPT_DIR} for creating doxygen stuff.")
-  set(_src_file _src_file-NOTFOUND)
-  find_file(_src_file index.html ${CMAKE_CURRENT_SOURCE_DIR}/html)
-  if(_src_file)
-    set(_src_dir ${CMAKE_CURRENT_SOURCE_DIR})
-    add_custom_target(doxygen_${ProjectName})
-  else(_src_file)
-    if(DOXYGEN_FOUND)
-      prepare_doxyfile()
-      # A custom command that exectutes doxygen
-      add_custom_command(OUTPUT html COMMAND
-        ${CMAKE_COMMAND} -D DOXYGEN_EXECUTABLE=${DOXYGEN_EXECUTABLE} -P ${SCRIPT_DIR}/RunDoxygen.cmake
-        COMMENT "Running doxygen documentation. This may take a while"
-        DEPENDS Doxyfile.in)
-      # Create a target for building the doxygen documentation of a module,
-      # that is run during make doc.
-      add_custom_target(doxygen_${ProjectName} DEPENDS html)
-      add_dependencies(doc doxygen_${ProjectName})
-    endif(DOXYGEN_FOUND)
-    set(_src_dir ${CMAKE_CURRENT_BINARY_DIR})
-  endif(_src_file)
+
+  if(DOXYGEN_FOUND)
+    prepare_doxyfile()
+    # A custom command that executes doxygen
+    add_custom_command(OUTPUT html
+      COMMAND ${CMAKE_COMMAND} -D DOXYGEN_EXECUTABLE=${DOXYGEN_EXECUTABLE} -P ${SCRIPT_DIR}/RunDoxygen.cmake
+      COMMENT "Running doxygen documentation. This may take a while"
+      DEPENDS Doxyfile.in)
+    # Create a target for building the doxygen documentation of a module,
+    # that is run during make doc
+    add_custom_target(doxygen_${ProjectName}
+      DEPENDS html)
+    add_dependencies(doc doxygen_${ProjectName})
+  endif(DOXYGEN_FOUND)
 
   # Use a cmake call to install the doxygen documentation and create a
   # target for it
@@ -76,10 +70,10 @@ MACRO (add_doxygen_target)
     "execute_process(COMMAND ${CMAKE_COMMAND} --build ${CMAKE_BINARY_DIR} --target doxygen_${ProjectName}
         WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
       file(GLOB doxygenfiles
-        GLOB ${_src_dir}/html/*.html
-        ${_src_dir}/html/*.png
-        ${_src_dir}/html/*.css
-        ${_src_dir}/html/*.gif)
+        GLOB ${CMAKE_CURRENT_BINARY_DIR}/html/*.html
+        ${CMAKE_CURRENT_BINARY_DIR}/html/*.png
+        ${CMAKE_CURRENT_BINARY_DIR}/html/*.css
+        ${CMAKE_CURRENT_BINARY_DIR}/html/*.gif)
       set(doxygenfiles \"\${doxygenfiles}\")
       foreach(_file \${doxygenfiles})
          get_filename_component(_basename \${_file} NAME)