CMake/Modules/FindCurses.cmake
Alexander Neundorf b837ade944 BUG: fix #6993
FindCurses.cmake is now almost exactly reverted back to the state when
CURSES_LIBRARY and CURSES_INCLUDE_PATH where set for compatibility but not
in the cache. It is important that CURSES_CURSES_LIBRARY and
CURSES_NCURSES_LIBRARY really contain the path to these files.
Later on CURSES_LIBRARY is set to the one of the two which will be
used as curses library. This is now done in the cache, without FORCE.
So preloading the cache still seems to work (at least what I tested).

Alex
2008-05-10 19:07:47 -04:00

129 lines
5.3 KiB
CMake

# - Find the curses include file and library
#
# CURSES_FOUND - system has Curses
# CURSES_INCLUDE_DIR - the Curses include directory
# CURSES_LIBRARIES - The libraries needed to use Curses
# CURSES_HAVE_CURSES_H - true if curses.h is available
# 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_NCURSES_LIBRARY NAMES ncurses )
SET(CURSES_USE_NCURSES FALSE)
IF(CURSES_NCURSES_LIBRARY AND NOT CURSES_CURSES_LIBRARY)
SET(CURSES_USE_NCURSES TRUE)
ENDIF(CURSES_NCURSES_LIBRARY AND NOT CURSES_CURSES_LIBRARY)
# Not sure the logic is correct here.
# If NCurses is required, use the function wsyncup() to check if the library
# has NCurses functionality (at least this is where it breaks on NetBSD).
# If wsyncup is in curses, use this one.
# If not, try to find ncurses and check if this has the symbol.
# Once the ncurses library is found, search the ncurses.h header first, but
# some web pages also say that even with ncurses there is not always a ncurses.h:
# http://osdir.com/ml/gnome.apps.mc.devel/2002-06/msg00029.html
# 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)
INCLUDE(CheckLibraryExists)
CHECK_LIBRARY_EXISTS("${CURSES_CURSES_LIBRARY}" wsyncup "" CURSES_CURSES_HAS_WSYNCUP)
IF(CURSES_NCURSES_LIBRARY AND NOT CURSES_CURSES_HAS_WSYNCUP)
CHECK_LIBRARY_EXISTS("${CURSES_NCURSES_LIBRARY}" wsyncup "" CURSES_NCURSES_HAS_WSYNCUP)
IF( CURSES_NCURSES_HAS_WSYNCUP)
SET(CURSES_USE_NCURSES TRUE)
ENDIF( CURSES_NCURSES_HAS_WSYNCUP)
ENDIF(CURSES_NCURSES_LIBRARY AND NOT CURSES_CURSES_HAS_WSYNCUP)
ENDIF(CURSES_CURSES_LIBRARY AND CURSES_NEED_NCURSES)
IF(NOT CURSES_USE_NCURSES)
FIND_FILE(CURSES_HAVE_CURSES_H curses.h )
FIND_PATH(CURSES_CURSES_H_PATH curses.h )
GET_FILENAME_COMPONENT(_cursesLibDir "${CURSES_CURSES_LIBRARY}" PATH)
GET_FILENAME_COMPONENT(_cursesParentDir "${_cursesLibDir}" PATH)
# for compatibility with older FindCurses.cmake this has to be in the cache
# FORCE must not be used since this would break builds which preload a cache wqith these variables set
SET(CURSES_INCLUDE_PATH "${CURSES_CURSES_H_PATH}" CACHE FILEPATH "The curses include path")
SET(CURSES_LIBRARY "${CURSES_CURSES_LIBRARY}" CACHE FILEPATH "The curses library")
ELSE(NOT CURSES_USE_NCURSES)
# we need to find ncurses
GET_FILENAME_COMPONENT(_cursesLibDir "${CURSES_NCURSES_LIBRARY}" PATH)
GET_FILENAME_COMPONENT(_cursesParentDir "${_cursesLibDir}" PATH)
FIND_FILE(CURSES_HAVE_NCURSES_H ncurses.h)
FIND_FILE(CURSES_HAVE_NCURSES_NCURSES_H ncurses/ncurses.h)
FIND_FILE(CURSES_HAVE_NCURSES_CURSES_H ncurses/curses.h)
FIND_FILE(CURSES_HAVE_CURSES_H curses.h PATHS "${_cursesParentDir}/include" NO_DEFAULT_PATH)
FIND_FILE(CURSES_HAVE_CURSES_H curses.h)
FIND_PATH(CURSES_NCURSES_INCLUDE_PATH ncurses.h ncurses/ncurses.h ncurses/curses.h)
FIND_PATH(CURSES_NCURSES_INCLUDE_PATH curses.h PATHS "${_cursesParentDir}/include" NO_DEFAULT_PATH)
FIND_PATH(CURSES_NCURSES_INCLUDE_PATH curses.h)
# for compatibility with older FindCurses.cmake this has to be in the cache
# FORCE must not be used since this would break builds which preload a cache wqith these variables set
SET(CURSES_INCLUDE_PATH "${CURSES_NCURSES_INCLUDE_PATH}" CACHE FILEPATH "The curses include path")
SET(CURSES_LIBRARY "${CURSES_NCURSES_LIBRARY}" CACHE FILEPATH "The curses library")
ENDIF(NOT CURSES_USE_NCURSES)
FIND_LIBRARY(CURSES_EXTRA_LIBRARY cur_colr PATHS "${_cursesLibDir}" NO_DEFAULT_PATH)
FIND_LIBRARY(CURSES_EXTRA_LIBRARY cur_colr )
FIND_LIBRARY(CURSES_FORM_LIBRARY form PATHS "${_cursesLibDir}" NO_DEFAULT_PATH)
FIND_LIBRARY(CURSES_FORM_LIBRARY form )
# for compatibility with older FindCurses.cmake this has to be in the cache
# FORCE must not be used since this would break builds which preload a cache wqith these variables set
SET(FORM_LIBRARY "${CURSES_FORM_LIBRARY}" CACHE FILEPATH "The curses form library")
# Need to provide the *_LIBRARIES
SET(CURSES_LIBRARIES ${CURSES_LIBRARY})
IF(CURSES_EXTRA_LIBRARY)
SET(CURSES_LIBRARIES ${CURSES_LIBRARIES} ${CURSES_EXTRA_LIBRARY})
ENDIF(CURSES_EXTRA_LIBRARY)
IF(CURSES_FORM_LIBRARY)
SET(CURSES_LIBRARIES ${CURSES_LIBRARIES} ${CURSES_FORM_LIBRARY})
ENDIF(CURSES_FORM_LIBRARY)
# Proper name is *_INCLUDE_DIR
SET(CURSES_INCLUDE_DIR ${CURSES_INCLUDE_PATH})
# handle the QUIETLY and REQUIRED arguments and set CURSES_FOUND to TRUE if
# all listed variables are TRUE
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(Curses DEFAULT_MSG CURSES_LIBRARY CURSES_INCLUDE_PATH)
MARK_AS_ADVANCED(
CURSES_INCLUDE_PATH
CURSES_LIBRARY
CURSES_CURSES_INCLUDE_PATH
CURSES_CURSES_LIBRARY
CURSES_NCURSES_INCLUDE_PATH
CURSES_NCURSES_LIBRARY
CURSES_EXTRA_LIBRARY
FORM_LIBRARY
CURSES_LIBRARIES
CURSES_INCLUDE_DIR
CURSES_CURSES_HAS_WSYNCUP
CURSES_NCURSES_HAS_WSYNCUP
)