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# cmake/modules/xwin.cmake
#
# Copyright (C) 2006 Alan W. Irwin
#
# This file is part of PLplot.
#
# PLplot is free software; you can redistribute it and/or modify
# it under the terms of the GNU Library General Public License as published
# by the Free Software Foundation; version 2 of the License.
#
# PLplot is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public License
# along with the file PLplot; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# Module for determining all configuration variables related to the xwin
# device driver.
# The following variables are set/modified:
# PLD_xwin - ON means the xwin device is enabled.
# xwin_COMPILE_FLAGS - individual COMPILE_FLAGS required to compile xwin
# device.
# xwin_LINK_FLAGS - individual LINK_FLAGS for dynamic xwin device.
# DRIVERS_LINK_FLAGS - list of LINK_FLAGS for all static devices.
# PL_HAVE_PTHREAD - ON means use pthreads with xwin driver.
# PLPLOT_MUTEX_RECURSIVE - Portable definition for PTHREAD_MUTEX_RECURSIVE
if(PLD_xwin)
if(X11_FOUND)
set(xwin_COMPILE_FLAGS "${X11_COMPILE_FLAGS}")
set(xwin_LINK_FLAGS "${X11_LIBRARIES}")
if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
# turn PL_HAVE_PTHREAD OFF by default for Mac OS X since it doesn't
# work for Mac OS X 10.4. Werner says it does work for vanilla
# XQuartz X11, but the official Apple version of X(Quartz) for 10.5
# doesn't have all the fixes of the vanilla version so he doesn't trust
# it. This his advice for now is to be conservative until we can
# get a clear report that official X works for 10.5.
option(PL_HAVE_PTHREAD "Use pthreads with the xwin driver" OFF)
else(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
# Turn PL_HAVE_PTHREAD ON by default for other platforms now that
# the tk segmentation fault has been cured.
option(PL_HAVE_PTHREAD "Use pthreads with the xwin driver" ON)
endif(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
if(PL_HAVE_PTHREAD)
find_package(Threads)
if(CMAKE_USE_PTHREADS_INIT)
set(xwin_LINK_FLAGS ${xwin_LINK_FLAGS} ${CMAKE_THREAD_LIBS_INIT})
cmake_link_flags(xwin_LINK_FLAGS "${xwin_LINK_FLAGS}")
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
set(PLPLOT_MUTEX_RECURSIVE "PTHREAD_MUTEX_RECURSIVE_NP")
elseif(CMAKE_SYSTEM_NAME STREQUAL "kFreeBSD")
set(PLPLOT_MUTEX_RECURSIVE "PTHREAD_MUTEX_RECURSIVE_NP")
else(CMAKE_SYSTEM_NAME STREQUAL "Linux")
set(PLPLOT_MUTEX_RECURSIVE "PTHREAD_MUTEX_RECURSIVE")
endif(CMAKE_SYSTEM_NAME STREQUAL "Linux")
else(CMAKE_USE_PTHREADS_INIT)
# I am being super-careful here to follow the autotools model. In
# fact, it is possible other thread systems will work as well as
# pthreads. So something to investigate for later.
set(PL_HAVE_PTHREAD OFF)
endif(CMAKE_USE_PTHREADS_INIT)
endif(PL_HAVE_PTHREAD)
set(DRIVERS_LINK_FLAGS ${DRIVERS_LINK_FLAGS} ${xwin_LINK_FLAGS})
else(X11_FOUND)
set(PLD_xwin OFF CACHE BOOL "Enable xwin device" FORCE)
endif(X11_FOUND)
endif(PLD_xwin)
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