Fix the detecion and use of the udev library.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 22db72d853)

ConfigureChecks.cmake

@@ -159,11 +159,11 @@ if( WITH_TDEHWLIB )
 endif( )
 
 
-# udev (tsak)
-if( BUILD_TSAK )
-  pkg_search_module( UDEV udev )
+# udev (tsak, tdekbdledsync)
+if( BUILD_TSAK OR BUILD_TDEKBDLEDSYNC )
+  pkg_search_module( UDEV libudev )
   if( NOT UDEV_FOUND )
-    tde_message_fatal( "udev is required, but was not found on your system" )
+    tde_message_fatal( "udev library is required, but was not found on your system" )
   endif( )
 endif( )
 

tdekbdledsync/CMakeLists.txt

@@ -23,7 +23,7 @@ link_directories(
 
 tde_add_executable( tdekbdledsync
   SOURCES getfd.c main.cpp
-  LINK udev X11
+  LINK ${UDEV_LIBRARIES} X11
   DESTINATION ${BIN_INSTALL_DIR}
   SETUID
 )

tsak/CMakeLists.txt

@@ -23,6 +23,6 @@ link_directories(
 
 tde_add_executable( tsak
   SOURCES main.cpp
-  LINK udev
+  LINK ${UDEV_LIBRARIES}
   DESTINATION ${BIN_INSTALL_DIR}
 )