diff -up kadu/kadu-core/CMakeLists.txt.dso kadu/kadu-core/CMakeLists.txt
--- kadu/kadu-core/CMakeLists.txt.dso	2009-10-11 14:41:36.000000000 +0200
+++ kadu/kadu-core/CMakeLists.txt	2010-03-23 23:54:10.000000000 +0100
@@ -163,7 +163,7 @@ endif (MINGW)
 else (WIN32)
 	add_executable (kadu main.cpp main_unix.cpp ${kadu_SRCS} ${MOC_FILES})
 	set_target_properties (kadu PROPERTIES ENABLE_EXPORTS ON)
-	target_link_libraries (kadu ${STATIC_MODULES} ${QT_LIBRARIES} ${LIBGADU_LIBRARIES})
+	target_link_libraries (kadu ${STATIC_MODULES} ${QT_LIBRARIES} ${LIBGADU_LIBRARIES} -lX11 -ldl)
 endif (WIN32)
 
 install (TARGETS kadu DESTINATION bin)