[Merge][CMake] Merged revisions : 6622

Revision  r6622
.----------------------
Started our own doxygen CMake rules. We cannot use UseDoxygen.cmake as
Doyfile.in needs to be generated.

.----------------------


[[Imported from SVN: r7164]]

cmake/modules/DUNEDoxygen.cmake

+FIND_PACKAGE(Doxygen)
+
+if (NOT DOXYGEN_DOT_FOUND)
+  set(DOT_TRUE '\#')
+endif (NOT DOXYGEN_DOT_FOUND)
+
+message('${DOT_TRUE}')
+#
+# prepare_doyfile()
+# This functions adds the necessary routines for the generation of the Doxyfile[.in] files needed to doxygen.
+FUNCTION (prepare_doxyfile)
+    set(make_doxyfile_command ${CMAKE_COMMAND} -D DUNE_MOD_NAME=${DUNE_MOD_NAME} -D DUNE_MOD_VERSION=${DUNE_MOD_VERSION} -D DOXYSTYLE=${CMAKE_CURRENT_SOURCE_DIR}/Doxystyle  -D DOXYLOCAL=${CMAKE_CURRENT_SOURCE_DIR}/Doxylocal -D abs_top_srcdir=${CMAKE_SOURCE_DIR} -D srcdir=${CMAKE_CURRENT_SOURCE_DIR} -P ${CMAKE_SOURCE_DIR}/cmake/scripts/CreateDoxyFile.cmake)
+  add_custom_command (OUTPUT Doxyfile.in Doxyfile
+    COMMAND ${make_doxyfile_command} COMMENT "Creating Doxyfile.in")
+  add_custom_target(Doxyfile DEPENDS Doxyfile.in Doxyfile)
+ENDFUNCTION (prepare_doxyfile)

doc/doxygen/CMakeLists.txt

 # quickhack for creating the Doxyfile.in and Doxyfile
-add_custom_command (OUTPUT Doxyfile.in Doxyfile
-  COMMAND ${CMAKE_COMMAND} -D DOXYSTYLE=${CMAKE_CURRENT_SOURCE_DIR}/Doxystyle  -D DOXYLOCAL=${CMAKE_CURRENT_SOURCE_DIR}/Doxylocal -D  abs_top_src_dir=${CMAKE_SOURCE_DIR} -D src_dir=${CMAKE_CURRENT_SOURCE_DIR} -P ${CMAKE_SOURCE_DIR}/cmake/scripts/CreateDoxyFile.cmake COMMENT "Creating Doxyfile.in")
-add_custom_target(Doxyfile DEPENDS Doxyfile.in)
+include(DUNEDoxygen)
+prepare_doxyfile()
 add_dependencies(doc Doxyfile)
 install(FILES Doxystyle DESTINATION share/dune-common/doc/doxygen)