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# cmake/modules/drivers.cmake
#
# Start driver initializations
#
# Copyright (C) 2006-2015 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 configuring all device-related variables.
# Results are contained in the following variables:
# ENABLE_DYNDRIVERS (ON or OFF): whether to dynamically load device drivers.
# PLD_devicename (ON or OFF): whether each PLplot-related device is enabled
# or not. devicename is png, jpeg, etc.
# devicename_COMPILE_FLAGS: compile (e.g., -I) options for each individual
# device.
# devicename_LINK_FLAGS: link options (e.g., -L and -l) for each
# individual device.
# DRIVERS_LINK_FLAGS: concatenated link options for all devices.
# DEVICES_LIST: list of devices (e.g. png, jpeg),where PLD_devicename is ON
# DRIVERS_LIST: list of device drivers (e.g., gd for the png and jpeg devices)
# where at least one of the associated devices is enabled.
set(DRIVERS_LINK_FLAGS)
option(ENABLE_DYNDRIVERS "Enable dynamic loading of device drivers" ON)
if(ENABLE_DYNDRIVERS AND NOT BUILD_SHARED_LIBS)
message(STATUS
"WARNING: Shared libraries not built. Setting ENABLE_DYNDRIVERS OFF."
)
set(ENABLE_DYNDRIVERS OFF CACHE BOOL
"Enable dynamic loading of device drivers" FORCE)
endif(ENABLE_DYNDRIVERS AND NOT BUILD_SHARED_LIBS)
if(ENABLE_DYNDRIVERS AND WIN32_OR_CYGWIN)
if(NOT CYGWIN)
set(LTDL_WIN32 ON)
set(LTDL_INCLUDE_DIR ${CMAKE_SOURCE_DIR}/include)
endif(NOT CYGWIN)
endif(ENABLE_DYNDRIVERS AND WIN32_OR_CYGWIN)
if(ENABLE_DYNDRIVERS AND NOT LTDL_WIN32)
find_package(LTDL)
if(LTDL_FOUND)
set(LTDL_LIBRARY_RPATH ${LTDL_LIBRARY_DIR})
filter_rpath(LTDL_LIBRARY_RPATH)
message(STATUS "LTDL_INCLUDE_DIR = ${LTDL_INCLUDE_DIR}")
message(STATUS "LTDL_LIBRARY_DIR = ${LTDL_LIBRARY_DIR}")
message(STATUS "LTDL_LIBRARIES = ${LTDL_LIBRARIES}")
else(LTDL_FOUND)
message(STATUS
"WARNING: libltdl library not found. Setting ENABLE_DYNDRIVERS OFF.\n"
" Please install that library and/or set the environment variables\n"
" CMAKE_INCLUDE_PATH and CMAKE_LIBRARY_PATH appropriately."
)
set(ENABLE_DYNDRIVERS OFF CACHE BOOL
"Enable dynamic loading of device drivers" FORCE)
endif(LTDL_FOUND)
endif(ENABLE_DYNDRIVERS AND NOT LTDL_WIN32)
# Needed to configure traditional build system for installed examples.
if(ENABLE_DYNDRIVERS)
set(enable_dyndrivers_true "")
set(enable_dyndrivers_false "#")
else(ENABLE_DYNDRIVERS)
set(enable_dyndrivers_true "#")
set(enable_dyndrivers_false "")
endif(ENABLE_DYNDRIVERS)
# Decide whether to enable each device or not and find special resources
# when required.
# Initialize device options (e.g., PLD_png is set to ON or OFF).
include(drivers-init)
# Find *_COMPILE_FLAGS and *_LINK_FLAGS resources for device drivers that need them,
# and set appropriate PLD_devicename to OFF if the required resources are
# not available.
include(cairo)
include(cgm)
include(gd)
include(xwin)
include(tk)
include(pstex)
include(psttf)
include(qt)
include(wingcc)
include(aqt)
include(wxwidgets)
include(pdf)
include(wingdi)
# Finalize device options.
include(drivers-finish)
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