Modules/FindCurses.cmake - third_party/cmake - Git at Google

 #.rst:
 # FindCurses
 # ----------
 #
 # 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.

 #=============================================================================
 # Copyright 2001-2009 Kitware, Inc.
 #
 # Distributed under the OSI-approved BSD License (the "License");
 # see accompanying file Copyright.txt for details.
 #
 # This software is distributed WITHOUT ANY WARRANTY; without even the
 # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 # See the License for more information.
 #=============================================================================
 # (To distribute this file outside of CMake, substitute the full
 #  License text for the above reference.)

 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) OR CURSES_NEED_NCURSES))
   set(CURSES_USE_NCURSES TRUE)
 endif()
 # http://cygwin.com/ml/cygwin-announce/2010-01/msg00002.html
 # cygwin ncurses stopped providing curses.h symlinks see above
 # message.  Cygwin is an ncurses package, so force ncurses on
 # cygwin if the curses.h is missing
 if(CYGWIN)
   if(NOT EXISTS /usr/include/curses.h)
     set(CURSES_USE_NCURSES TRUE)
   endif()
 endif()


 # 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(${CMAKE_CURRENT_LIST_DIR}/CheckLibraryExists.cmake)
   CHECK_LIBRARY_EXISTS("${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()
   endif()

 endif()


 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()
 # 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
     HINTS "${_cursesParentDir}/include")

   find_path(CURSES_NCURSES_INCLUDE_PATH ncurses.h ncurses/ncurses.h
     ncurses/curses.h)
   find_path(CURSES_NCURSES_INCLUDE_PATH curses.h
     HINTS "${_cursesParentDir}/include")

   # 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
   # however if the value of the variable has NOTFOUND in it, then
   # it is OK to force, and we need to force in order to have it work.
   # a cache wqith these variables set
   # only put ncurses include and library into
   # variables if they are found
   if(NOT CURSES_NCURSES_INCLUDE_PATH AND CURSES_HAVE_NCURSES_NCURSES_H)
     get_filename_component(CURSES_NCURSES_INCLUDE_PATH
       "${CURSES_HAVE_NCURSES_NCURSES_H}" PATH)
   endif()
   if(CURSES_NCURSES_INCLUDE_PATH AND CURSES_NCURSES_LIBRARY)
     set( FORCE_IT )
     if(CURSES_INCLUDE_PATH MATCHES NOTFOUND)
       set(FORCE_IT FORCE)
     endif()
     set(CURSES_INCLUDE_PATH "${CURSES_NCURSES_INCLUDE_PATH}"
       CACHE FILEPATH "The curses include path" ${FORCE_IT})
     set( FORCE_IT)
     if(CURSES_LIBRARY MATCHES NOTFOUND)
       set(FORCE_IT FORCE)
     endif()
     set(CURSES_LIBRARY "${CURSES_NCURSES_LIBRARY}"
       CACHE FILEPATH "The curses library" ${FORCE_IT})
   endif()

   CHECK_LIBRARY_EXISTS("${CURSES_NCURSES_LIBRARY}"
     cbreak "" CURSES_NCURSES_HAS_CBREAK)
   if(NOT CURSES_NCURSES_HAS_CBREAK)
     find_library(CURSES_EXTRA_LIBRARY tinfo HINTS "${_cursesLibDir}")
     find_library(CURSES_EXTRA_LIBRARY tinfo )
     CHECK_LIBRARY_EXISTS("${CURSES_EXTRA_LIBRARY}"
       cbreak "" CURSES_TINFO_HAS_CBREAK)
   endif()
 endif()

 if (NOT CURSES_TINFO_HAS_CBREAK)
   find_library(CURSES_EXTRA_LIBRARY cur_colr HINTS "${_cursesLibDir}")
   find_library(CURSES_EXTRA_LIBRARY cur_colr )
 endif()

 find_library(CURSES_FORM_LIBRARY form HINTS "${_cursesLibDir}")
 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
 # qith 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()

 if(CURSES_FORM_LIBRARY)
   set(CURSES_LIBRARIES ${CURSES_LIBRARIES} ${CURSES_FORM_LIBRARY})
 endif()

 # 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(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
 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
   CURSES_NCURSES_HAS_CBREAK
   CURSES_TINFO_HAS_CBREAK
   )
	#.rst:
	# FindCurses
	# ----------
	#
	# 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.

	#=============================================================================
	# Copyright 2001-2009 Kitware, Inc.
	#
	# Distributed under the OSI-approved BSD License (the "License");
	# see accompanying file Copyright.txt for details.
	#
	# This software is distributed WITHOUT ANY WARRANTY; without even the
	# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
	# See the License for more information.
	#=============================================================================
	# (To distribute this file outside of CMake, substitute the full
	# License text for the above reference.)

	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) OR CURSES_NEED_NCURSES))
	set(CURSES_USE_NCURSES TRUE)
	endif()
	# http://cygwin.com/ml/cygwin-announce/2010-01/msg00002.html
	# cygwin ncurses stopped providing curses.h symlinks see above
	# message. Cygwin is an ncurses package, so force ncurses on
	# cygwin if the curses.h is missing
	if(CYGWIN)
	if(NOT EXISTS /usr/include/curses.h)
	set(CURSES_USE_NCURSES TRUE)
	endif()
	endif()


	# 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(${CMAKE_CURRENT_LIST_DIR}/CheckLibraryExists.cmake)
	CHECK_LIBRARY_EXISTS("${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()
	endif()

	endif()


	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()
	# 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
	HINTS "${_cursesParentDir}/include")

	find_path(CURSES_NCURSES_INCLUDE_PATH ncurses.h ncurses/ncurses.h
	ncurses/curses.h)
	find_path(CURSES_NCURSES_INCLUDE_PATH curses.h
	HINTS "${_cursesParentDir}/include")

	# 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
	# however if the value of the variable has NOTFOUND in it, then
	# it is OK to force, and we need to force in order to have it work.
	# a cache wqith these variables set
	# only put ncurses include and library into
	# variables if they are found
	if(NOT CURSES_NCURSES_INCLUDE_PATH AND CURSES_HAVE_NCURSES_NCURSES_H)
	get_filename_component(CURSES_NCURSES_INCLUDE_PATH
	"${CURSES_HAVE_NCURSES_NCURSES_H}" PATH)
	endif()
	if(CURSES_NCURSES_INCLUDE_PATH AND CURSES_NCURSES_LIBRARY)
	set( FORCE_IT )
	if(CURSES_INCLUDE_PATH MATCHES NOTFOUND)
	set(FORCE_IT FORCE)
	endif()
	set(CURSES_INCLUDE_PATH "${CURSES_NCURSES_INCLUDE_PATH}"
	CACHE FILEPATH "The curses include path" ${FORCE_IT})
	set( FORCE_IT)
	if(CURSES_LIBRARY MATCHES NOTFOUND)
	set(FORCE_IT FORCE)
	endif()
	set(CURSES_LIBRARY "${CURSES_NCURSES_LIBRARY}"
	CACHE FILEPATH "The curses library" ${FORCE_IT})
	endif()

	CHECK_LIBRARY_EXISTS("${CURSES_NCURSES_LIBRARY}"
	cbreak "" CURSES_NCURSES_HAS_CBREAK)
	if(NOT CURSES_NCURSES_HAS_CBREAK)
	find_library(CURSES_EXTRA_LIBRARY tinfo HINTS "${_cursesLibDir}")
	find_library(CURSES_EXTRA_LIBRARY tinfo )
	CHECK_LIBRARY_EXISTS("${CURSES_EXTRA_LIBRARY}"
	cbreak "" CURSES_TINFO_HAS_CBREAK)
	endif()
	endif()

	if (NOT CURSES_TINFO_HAS_CBREAK)
	find_library(CURSES_EXTRA_LIBRARY cur_colr HINTS "${_cursesLibDir}")
	find_library(CURSES_EXTRA_LIBRARY cur_colr )
	endif()

	find_library(CURSES_FORM_LIBRARY form HINTS "${_cursesLibDir}")
	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
	# qith 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()

	if(CURSES_FORM_LIBRARY)
	set(CURSES_LIBRARIES ${CURSES_LIBRARIES} ${CURSES_FORM_LIBRARY})
	endif()

	# 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(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
	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
	CURSES_NCURSES_HAS_CBREAK
	CURSES_TINFO_HAS_CBREAK
	)