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diff -u -r -N digikam-1.2.0-2/CMakeLists.txt digikam-1.2.0/CMakeLists.txt
--- digikam-1.2.0-2/CMakeLists.txt	2010-09-25 18:01:53.000000000 +0200
+++ digikam-1.2.0/CMakeLists.txt	2010-09-25 18:05:16.000000000 +0200
@@ -1260,18 +1260,43 @@
 # ==================================================================================================
 # API documentation generation
 
-IF(DOXYGEN_FOUND)
+# Checks if user ask to build documentation.
+IF(BUILD_DOC)
+    IF(DOXYGEN_FOUND)
 
-    SET(API_DIR ${CMAKE_BINARY_DIR}/api)
-    SET(SOURCE_DIR ${CMAKE_SOURCE_DIR})
-    SET(DOXYFILE ${CMAKE_BINARY_DIR}/Doxyfile)
-    SET(WARNFILE ${CMAKE_BINARY_DIR}/doxygen-warn.log)
+        MESSAGE(STATUS "")
+        MESSAGE(STATUS "Documentation will be installed")
+	MESSAGE(STATUS "")
 
-    CONFIGURE_FILE(Doxyfile.cmake ${DOXYFILE})
+        SET(API_DIR ${CMAKE_BINARY_DIR}/api)
+        SET(SOURCE_DIR ${CMAKE_SOURCE_DIR})
+        SET(DOXYFILE ${CMAKE_BINARY_DIR}/Doxyfile)
+        SET(WARNFILE ${CMAKE_BINARY_DIR}/doxygen-warn.log)
 
-    ADD_CUSTOM_TARGET(doc ${DOXYGEN_EXECUTABLE} ${DOXYFILE}
-                      WORKING_DIRECTORY ${CMAKE_BINARY_DIR})
+        CONFIGURE_FILE(Doxyfile.cmake ${DOXYFILE})
+
+        ADD_CUSTOM_TARGET(doc ALL ${DOXYGEN_EXECUTABLE} ${DOXYFILE}
+                          WORKING_DIRECTORY ${CMAKE_BINARY_DIR})
+
+    ELSE(DOXYGEN_FOUND)
+    
+        MESSAGE(STATUS "")
+        MESSAGE(STATUS "Documentation will NOT be installed")
+	MESSAGE(STATUS "Doxygen wasn't found on the system")
+	MESSAGE(STATUS "")
+
+    ENDIF(DOXYGEN_FOUND)
+
+ELSE(BUILD_DOC)
+
+    MESSAGE(STATUS "")
+    MESSAGE(STATUS "Documentation will NOT be installed")
+    MESSAGE(STATUS "Because the option -DBUILD_DOC=ON wasn't passed to cmake")
+    MESSAGE(STATUS "")
+
+ENDIF(BUILD_DOC)
 
-ENDIF(DOXYGEN_FOUND)
 include(MacroOptionalAddSubdirectory)
 macro_optional_add_subdirectory( po )
+
+add_subdirectory( doc )