Search for clucene include file in the clucene include directory.

diff -u -r soprano-2.9.4.orig/cmake/modules/FindCLucene.cmake soprano-2.9.4/cmake/modules/FindCLucene.cmake
--- soprano-2.9.4.orig/cmake/modules/FindCLucene.cmake	2013-10-09 19:22:28.000000000 +0200
+++ soprano-2.9.4/cmake/modules/FindCLucene.cmake	2014-04-28 20:08:11.000000000 +0200
@@ -77,7 +77,8 @@
 
 get_filename_component(TRIAL_LIBRARY_DIR ${CLUCENE_LIBRARY} PATH)
 find_path(CLUCENE_LIBRARY_DIR
-  NAMES CLucene/clucene-config.h PATHS ${TRIAL_LIBRARY_DIR} ${TRIAL_LIBRARY_PATHS} ${TRIAL_INCLUDE_PATHS} NO_DEFAULT_PATH)
+  NAMES CLucene/clucene-config.h PATHS ${TRIAL_LIBRARY_DIR} ${TRIAL_LIBRARY_PATHS} ${TRIAL_INCLUDE_PATHS} ${CLUCENE_INCLUDE_DIR} NO_DEFAULT_PATH)
+message (STATUS "XXX ${CLUCENE_LIBRARY_DIR}")
 if(CLUCENE_LIBRARY_DIR)
   message(STATUS "Found CLucene library dir: ${CLUCENE_LIBRARY_DIR}")
   file(READ ${CLUCENE_LIBRARY_DIR}/CLucene/clucene-config.h CLCONTENT)