Better handle of kabc check.

sflphone_kde/cmake_modules/FindKabc.cmake

-FIND_LIBRARY(KABC_LIBRARY NAMES libkabc.so)
+FIND_LIBRARY(KABC_LIBRARY NAMES kabc)
+FIND_PATH(KABC_INCLUDE_DIR kabc_export.h /usr/include/kabc /usr/local/include/kabc )
 
 
-IF (KABC_LIBRARY)
-   SET(KABC_FOUND TRUE)
-ELSE (KABC_LIBRARY)
-   SET(KABC_FOUND FALSE)
-ENDIF (KABC_LIBRARY)
+IF (KABC_INCLUDE_DIR AND KABC_LIBRARY)
+	SET(KABC_FOUND TRUE)
+ELSE (KABC_INCLUDE_DIR AND KABC_LIBRARY)
+	SET(KABC_FOUND FALSE)
+ENDIF (KABC_INCLUDE_DIR AND KABC_LIBRARY)
 
 
 IF (KABC_FOUND)