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# - Try to find gps library
# Once done this will define
#
# GPS_FOUND - system has gps
# GPS_INCLUDE_DIR - the gps include directory
# GPS_LIBRARY - Link this to use gps
#=============================================================================
# Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
# Copyright 2006-2009 Kitware, Inc.
# Copyright 2006 Alexander Neundorf <neundorf@kde.org>
# Copyright 2010 David Register
# Copyright 2017 Alexander Wolf
#
#
# All rights reserved.
#
#Redistribution and use in source and binary forms, with or without
#modification, are permitted provided that the following conditions
#are met:
#
#* Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
#* Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
#* Neither the names of Kitware, Inc., the Insight Software Consortium,
# nor the names of their contributors may be used to endorse or promote
# products derived from this software without specific prior written
# permission.
#THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
#"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
#LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
#A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
#HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
#LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
#DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
#THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
#(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
#OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#------------------------------------------------------------------------------
#The above copyright and license notice applies to distributions of
#CMake in source and binary form. Some source files contain additional
#notices of original copyright by their contributors; see each source
#for details. Third-party software packages supplied with CMake under
#compatible licenses provide their own copyright notices documented in
#corresponding subdirectories.
#
#------------------------------------------------------------------------------
#
#CMake was initially developed by Kitware with the following sponsorship:
#
# * National Library of Medicine at the National Institutes of Health
# as part of the Insight Segmentation and Registration Toolkit (ITK).
#
# * US National Labs (Los Alamos, Livermore, Sandia) ASC Parallel
# Visualization Initiative.
#
# * National Alliance for Medical Image Computing (NAMIC) is funded by the
# National Institutes of Health through the NIH Roadmap for Medical Research,
# Grant U54 EB005149.
#
# * Kitware, Inc.
IF (GPS_INCLUDE_DIR AND GPS_LIBRARY)
SET(GPS_FIND_QUIETLY TRUE)
ENDIF (GPS_INCLUDE_DIR AND GPS_LIBRARY)
FIND_PATH(GPS_INCLUDE_DIR gps.h /usr/include /usr/include/gps /usr/local/include/gps /usr/local/include /opt/local/include /sw/include)
FIND_LIBRARY(GPS_LIBRARY NAMES gps PATH /usr/lib /usr/local/lib /opt/local/lib /sw/lib)
IF (GPS_INCLUDE_DIR AND GPS_LIBRARY)
SET(GPS_FOUND TRUE)
ENDIF (GPS_INCLUDE_DIR AND GPS_LIBRARY)
IF(GPS_INCLUDE_DIR)
FILE(STRINGS ${GPS_INCLUDE_DIR}/gps.h _version_lines REGEX "GPSD_API_(MAJOR|MINOR)_VERSION")
STRING(REGEX MATCH "MAJOR_VERSION[ \t]+([0-9]+)" _version_major ${_version_lines})
SET(GPS_VERSION_MAJOR ${CMAKE_MATCH_1})
STRING(REGEX MATCH "MINOR_VERSION[ \t]+([0-9]+)" _version_minor ${_version_lines})
SET(GPS_VERSION_MINOR ${CMAKE_MATCH_1})
SET(GPS_VERSION_STRING "${GPS_VERSION_MAJOR}.${GPS_VERSION_MINOR}")
ENDIF()
IF (GPS_FOUND)
IF (NOT GPS_FIND_QUIETLY)
MESSAGE(STATUS "Found GPS: ${GPS_LIBRARY}")
ENDIF (NOT GPS_FIND_QUIETLY)
ELSE (GPS_FOUND)
IF (GPS_FIND_REQUIRED)
MESSAGE(FATAL_ERROR "Could not find GPS library")
ENDIF (GPS_FIND_REQUIRED)
ENDIF (GPS_FOUND)
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