Fix build with cmake 2.4 which was accidentally broken

cmake/FindTCL.cmake

@@ -31,6 +31,10 @@
 #      this point it is safer you ask directly where the *source* tree is
 #      and dig from there.
 
+IF(TCL_FOUND)
+  SET(TCL_FIND_QUIETLY TRUE)
+ENDIF(TCL_FOUND)
+
 INCLUDE(CMakeFindFrameworks)
 INCLUDE(FindTclsh)
 
@@ -141,15 +145,12 @@ FIND_PATH(TCL_INCLUDE_PATH
   PATHS ${TCL_POSSIBLE_INCLUDE_PATHS}
   )
 
-# handle the QUIETLY and REQUIRED arguments and set TCL_FOUND to TRUE if 
-# all listed variables are TRUE
-INCLUDE(FindPackageHandleStandardArgs)
-
-FIND_PACKAGE_HANDLE_STANDARD_ARGS(TCL DEFAULT_MSG TCL_LIBRARY TCL_INCLUDE_PATH)
-SET(TCL_FIND_REQUIRED ${TCL_FIND_REQUIRED})
-SET(TCL_FIND_QUIETLY  ${TCL_FIND_QUIETLY})
-SET(TCL_VERSION ${TCL_VERSION})
-FIND_PACKAGE_HANDLE_STANDARD_ARGS(TCL DEFAULT_MSG TCL_LIBRARY TCL_INCLUDE_PATH)
+IF(TCL_LIBRARY AND TCL_INCLUDE_PATH)
+  SET(TCL_VERSION ${TCL_VERSION})
+  SET(TCL_LIBARY ${TCL_LIBRARY})
+  SET(TCL_INCLUDE_PATH ${TCL_INCLUDE_PATH})
+  SET(TCL_FOUND TRUE)
+ENDIF(TCL_LIBRARY AND TCL_INCLUDE_PATH)
 
 MARK_AS_ADVANCED(
   TCL_INCLUDE_PATH