ENH: make this backwards compatible with older FindCurses

Modules/FindCurses.cmake

@@ -7,19 +7,20 @@
 #  CURSES_HAVE_NCURSES_H - true if ncurses.h is available
 #  CURSES_HAVE_NCURSES_NCURSES_H - true if ncurses/ncurses.h is available
 #  CURSES_HAVE_NCURSES_CURSES_H - true if ncurses/curses.h is available
+#  CURSES_LIBRARY - set for backwards compatibility with 2.4 CMake
 #
 # Set CURSES_NEED_NCURSES to TRUE before the FIND_PACKAGE() command if NCurses 
 # functionality is required.
 
-FIND_LIBRARY(CURSES_CURSES_LIBRARY NAMES curses )
+FIND_LIBRARY(CURSES_LIBRARY NAMES curses )
 
 FIND_LIBRARY(CURSES_NCURSES_LIBRARY NAMES ncurses )
 
 SET(CURSES_USE_NCURSES FALSE)
 
-IF(CURSES_NCURSES_LIBRARY  AND NOT  CURSES_CURSES_LIBRARY)
+IF(CURSES_NCURSES_LIBRARY  AND NOT  CURSES_LIBRARY)
   SET(CURSES_USE_NCURSES TRUE)
-ENDIF(CURSES_NCURSES_LIBRARY  AND NOT  CURSES_CURSES_LIBRARY)
+ENDIF(CURSES_NCURSES_LIBRARY  AND NOT  CURSES_LIBRARY)
 
 
 # Not sure the logic is correct here.
@@ -33,9 +34,9 @@ ENDIF(CURSES_NCURSES_LIBRARY  AND NOT  CURSES_CURSES_LIBRARY)
 # So at first try ncurses.h, if not found, try to find curses.h under the same
 # prefix as the library was found, if still not found, try curses.h with the 
 # default search paths.
-IF(CURSES_CURSES_LIBRARY  AND  CURSES_NEED_NCURSES)
+IF(CURSES_LIBRARY  AND  CURSES_NEED_NCURSES)
   INCLUDE(CheckLibraryExists)
-  CHECK_LIBRARY_EXISTS("${CURSES_CURSES_LIBRARY}" wsyncup "" CURSES_CURSES_HAS_WSYNCUP)
+  CHECK_LIBRARY_EXISTS("${CURSES_LIBRARY}" wsyncup "" CURSES_CURSES_HAS_WSYNCUP)
 
   IF(CURSES_NCURSES_LIBRARY  AND NOT  CURSES_CURSES_HAS_WSYNCUP)
     CHECK_LIBRARY_EXISTS("${CURSES_NCURSES_LIBRARY}" wsyncup "" CURSES_NCURSES_HAS_WSYNCUP)
@@ -44,7 +45,7 @@ IF(CURSES_CURSES_LIBRARY  AND  CURSES_NEED_NCURSES)
     ENDIF( CURSES_NCURSES_HAS_WSYNCUP)
   ENDIF(CURSES_NCURSES_LIBRARY  AND NOT  CURSES_CURSES_HAS_WSYNCUP)
 
-ENDIF(CURSES_CURSES_LIBRARY  AND  CURSES_NEED_NCURSES)
+ENDIF(CURSES_LIBRARY  AND  CURSES_NEED_NCURSES)
 
 
 IF(NOT CURSES_USE_NCURSES)
@@ -52,8 +53,7 @@ IF(NOT CURSES_USE_NCURSES)
   FIND_PATH(CURSES_CURSES_H_PATH curses.h )
   SET(CURSES_INCLUDE_PATH "${CURSES_CURSES_H_PATH}")
 
-  SET(CURSES_LIBRARY "${CURSES_CURSES_LIBRARY}")
-  GET_FILENAME_COMPONENT(_cursesLibDir "${CURSES_CURSES_LIBRARY}" PATH)
+  GET_FILENAME_COMPONENT(_cursesLibDir "${CURSES_LIBRARY}" PATH)
   GET_FILENAME_COMPONENT(_cursesParentDir "${_cursesLibDir}" PATH)
 ELSE(NOT CURSES_USE_NCURSES)
 # we need to find ncurses
@@ -71,7 +71,7 @@ ELSE(NOT CURSES_USE_NCURSES)
   FIND_PATH(CURSES_NCURSES_INCLUDE_PATH curses.h)
 
   SET(CURSES_INCLUDE_PATH "${CURSES_NCURSES_INCLUDE_PATH}")
-  SET(CURSES_LIBRARY "${CURSES_NCURSES_LIBRARY}")
+  SET(CURSES_LIBRARY "${CURSES_NCURSES_LIBRARY}" CACHE FILEPATH "path to curses")
 ENDIF(NOT CURSES_USE_NCURSES)
 
 
@@ -107,7 +107,7 @@ MARK_AS_ADVANCED(
   CURSES_INCLUDE_PATH
   CURSES_LIBRARY
   CURSES_CURSES_INCLUDE_PATH
-  CURSES_CURSES_LIBRARY
+  CURSES_LIBRARY
   CURSES_NCURSES_INCLUDE_PATH
   CURSES_NCURSES_LIBRARY
   CURSES_EXTRA_LIBRARY