Fix the IF IF problem

Source/CMakeLists.txt

@@ -51,7 +51,7 @@ IF (UNIX)
   IF (CURSES_LIBRARY AND FORM_LIBRARY)
     SUBDIRS(CursesDialog)
   ENDIF (CURSES_LIBRARY AND FORM_LIBRARY)
-IF (UNIX)
+ENDIF (UNIX)
 
 SOURCE_FILES(SRCS cmUnixMakefileGenerator.cxx)