--- oyranos-0.9.4/src/CMakeLists.txt
+++ oyranos-0.9.4/src/CMakeLists.txt
@@ -100,7 +100,9 @@
 INCLUDE_DIRECTORIES( ${XCM_INCLUDE_DIRS} )
 LINK_DIRECTORIES( ${XCM_LIBRARY_DIRS} )
 
-FIND_PACKAGE( X11 )
+IF(WANT_X11)
+FIND_PACKAGE( X11 REQUIRED )
+ENDIF(WANT_X11)
 IF(X11_FOUND)
   INCLUDE_DIRECTORIES( ${X11_INCLUDE_DIRS} )
   LINK_DIRECTORIES( ${X11_LIBRARY_DIRS} )
@@ -123,27 +125,35 @@
   LINK_DIRECTORIES( ${XXF86VM_LIBRARY_DIRS} )
 ENDIF(X11_FOUND)
 
-FIND_PACKAGE( CUPS )
+IF(WANT_CUPS)
+FIND_PACKAGE( Cups REQUIRED )
+SET( HAVE_CUPS 1 )
+ENDIF(WANT_CUPS)
 IF(HAVE_CUPS)
-  INCLUDE_DIRECTORIES( ${CUPS_INCLUDE_DIRS} )
-  LINK_DIRECTORIES( ${CUPS_LIBRARY_DIRS} )
+  INCLUDE_DIRECTORIES( ${CUPS_INCLUDE_DIR} )
 ENDIF(HAVE_CUPS)
 
-FIND_PACKAGE( Cairo )
+IF(WANT_CAIRO)
+FIND_PACKAGE( Cairo REQUIRED)
+ENDIF(WANT_CAIRO)
 IF(HAVE_CAIRO)
   INCLUDE_DIRECTORIES( ${CAIRO_INCLUDE_DIR}/cairo )
   INCLUDE_DIRECTORIES( ${CAIRO_INCLUDE_DIR} )
   LINK_DIRECTORIES( ${CAIRO_LIBRARY_DIRS} )
 ENDIF(HAVE_CAIRO)
 
-FIND_PACKAGE(Qt4 COMPONENTS QtCore QtGui)
+IF(WANT_QT4)
+FIND_PACKAGE(Qt4 COMPONENTS QtCore QtGui REQUIRED)
+ENDIF(WANT_QT4)
 IF(QT_FOUND)
   SET( HAVE_QT 1 )
   INCLUDE_DIRECTORIES( ${QT_INCLUDE_DIRS} )
   LINK_DIRECTORIES( ${QT_LIBRARY_DIRS} )
 ENDIF(QT_FOUND)
 
-FIND_PACKAGE( Fltk )
+IF(WANT_FLTK)
+FIND_PACKAGE( FLTK REQUIRED)
+ENDIF(WANT_FLTK)
 IF(FLTK_FOUND)
   SET( HAVE_FLTK 1 )
   INCLUDE_DIRECTORIES( ${FLTK_INCLUDE_DIRS} )
@@ -159,7 +169,9 @@
   SET( LIBXML2_LIBRARIES ${LIBXML2_LIBRARIES} PARENT_SCOPE)
 ENDIF(LIBXML2_FOUND)
 
-FIND_PACKAGE( LibRaw )
+IF(WANT_LIBRAW)
+FIND_PACKAGE( LibRaw REQUIRED )
+ENDIF(WANT_LIBRAW)
 IF( HAVE_LIBRAW )
 #  TRY_COMPILE(
 #    HAVE_LIBRAW_REALLY
@@ -182,7 +194,9 @@
   MESSAGE( "HAVE_LIBRAW_PLUGIN: ${HAVE_LIBRAW_PLUGIN}" )
 ENDIF()
 
-FIND_PACKAGE( Exif2 )
+IF(WANT_EXIV2)
+FIND_PACKAGE( Exif2 REQUIRED )
+ENDIF(WANT_EXIV2)
 IF(HAVE_EXIV2)
   INCLUDE_DIRECTORIES( ${EXIV2_INCLUDE_DIRS} )
   LINK_DIRECTORIES( ${EXIV2_LIBRARY_DIRS} )
--- oyranos-0.9.4/CMakeLists.txt
+++ oyranos-0.9.4/CMakeLists.txt
@@ -41,7 +41,7 @@
 
 
 # detect top level projects
-FIND_PACKAGE( Yajl )
+FIND_PACKAGE( Yajl REQUIRED )
 IF( HAVE_YAJL )
   INCLUDE_DIRECTORIES( ${YAJL_INCLUDE_DIRS} )
   LINK_DIRECTORIES( ${YAJL_LIBRARY_DIRS} )
@@ -51,71 +51,15 @@
   IF( NOT HAVE_YAJL_VERSION_H )
     INCLUDE_DIRECTORIES( ${CMAKE_SOURCE_DIR}/yajl/ )
   ENDIF( NOT HAVE_YAJL_VERSION_H )
-ELSE( HAVE_YAJL )
-  IF(CMAKE_VERSION VERSION_GREATER 2.8.0)
-    include(ExternalProject)
-    ExternalProject_Add( yajl
-    SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/yajl
-    CONFIGURE_COMMAND cmake ${CMAKE_CURRENT_SOURCE_DIR}/yajl
-    BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/yajl
-    BUILD_COMMAND ${MAKE}
-    # skip installation
-    INSTALL_COMMAND echo )
-    INCLUDE_DIRECTORIES( ${CMAKE_CURRENT_SOURCE_DIR}/yajl )
-    LINK_DIRECTORIES( ${CMAKE_CURRENT_BINARY_DIR}/yajl )
-    SET( YAJL_LIBRARIES yajl-static )
-  ENDIF()
-  
 ENDIF( HAVE_YAJL )
 
-FIND_PACKAGE( Elektra )
+FIND_PACKAGE( Elektra REQUIRED )
+SET( HAVE_ELEKTRA 1 )
 IF(HAVE_ELEKTRA)
   SET( ELEKTRA_SPEC "Requires: elektra 0.7
 BuildRequires: elektra-devel" )
   INCLUDE_DIRECTORIES( ${ELEKTRA_INCLUDE_DIRS} )
   LINK_DIRECTORIES( ${ELEKTRA_LIBRARY_DIRS} )
-ELSE(HAVE_ELEKTRA)
-  SET( ELEKTRA_VERSION elektra-0.7.1 )
-  MESSAGE( "-- Using internal Elektra: ${ELEKTRA_VERSION}" )
-  INCLUDE_DIRECTORIES( ${CMAKE_SOURCE_DIR}/${ELEKTRA_VERSION}/src/include
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/include )
-  SET( ELEKTRA_LIBRARIES_STATIC
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libelektra/libelektra_a-kdb.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libelektra/libelektra_a-kdbhandle.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libelektra/libelektra_a-key.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libelektra/libelektra_a-keyset.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libelektra/libelektra_a-trie.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libelektra/libelektra_a-kdbhighlevel.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libelektra/libelektra_a-kdbcapability.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libelektra/libelektra_a-keyhelpers.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libelektra/libelektra_a-keymeta.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libelektra/libelektra_a-keyname.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libelektra/libelektra_a-keytest.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libelektra/libelektra_a-keyvalue.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libelektra/libelektra_a-serialize.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libelektra/libelektra_a-split.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libelektra/libelektra_a-exported_symbols.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libloader/libloader_static_a-kdbLibLoader.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libhelper/libhelper_static_a-internal.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libhelper/libhelper_static_a-helper.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/backends/filesys/libelektra_filesys_a-filesys.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libelektratools/libelektratools_a-kdbtools.o
-       ${CMAKE_BINARY_DIR}/${ELEKTRA_VERSION}/src/libelektratools/libelektratools_a-stream.o
-     )
-  SET( ELEKTRA_LIBRARIES 
-       ${LIBXML2_LIBRARIES}
-     )
-  IF(CMAKE_VERSION VERSION_GREATER 2.8.0)
-    include(ExternalProject)
-    ExternalProject_Add( ${ELEKTRA_VERSION}
-    SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/${ELEKTRA_VERSION}
-    # GCC flags (-fPIC) will fail on Windows, without we get relocation R_X86_64_32 errors
-    CONFIGURE_COMMAND CFLAGS=-fPIC ${CMAKE_CURRENT_SOURCE_DIR}/${ELEKTRA_VERSION}/configure --enable-static --enable-shared=false
-    BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/${ELEKTRA_VERSION}
-    BUILD_COMMAND ${MAKE}
-    # skip installation
-    INSTALL_COMMAND echo )
-  ENDIF()
 ENDIF(HAVE_ELEKTRA)
 
 #now add all directories