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# - Try to find WCSLIB: the FITS "World Coordinate System" library
# Variables used by this module:
# WCSLIB_ROOT_DIR - WCSLIB root directory
# Variables defined by this module:
# WCSLIB_FOUND - system has WCSLIB
# WCSLIB_INCLUDE_DIR - the WCSLIB include directory (cached)
# WCSLIB_INCLUDE_DIRS - the WCSLIB include directories
# (identical to WCSLIB_INCLUDE_DIR)
# WCSLIB_LIBRARY - the WCSLIB library (cached)
# WCSLIB_LIBRARIES - the WCSLIB libraries
# (identical to WCSLIB_LIBRARY)
# WCSLIB_VERSION_STRING the found version of WCSLIB
# Copyright (C) 2009
# ASTRON (Netherlands Institute for Radio Astronomy)
# P.O.Box 2, 7990 AA Dwingeloo, The Netherlands
#
# This file is part of the LOFAR software suite.
# The LOFAR software suite is free software: you can redistribute it and/or
# modify it under the terms of the GNU General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# The LOFAR software suite 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with the LOFAR software suite. If not, see <http://www.gnu.org/licenses/>.
#
# $Id$
if(NOT WCSLIB_FOUND)
find_path(WCSLIB_INCLUDE_DIR wcslib/wcsconfig.h
HINTS ${WCSLIB_ROOT_DIR} PATH_SUFFIXES include)
if(WCSLIB_INCLUDE_DIR)
FILE(READ "${WCSLIB_INCLUDE_DIR}/wcslib/wcsconfig.h" WCSLIB_H)
set(WCSLIB_VERSION_REGEX ".*#define WCSLIB_VERSION[^0-9]*([0-9]+)\\.([0-9]+).*")
if ("${WCSLIB_H}" MATCHES ${WCSLIB_VERSION_REGEX})
STRING(REGEX REPLACE ${WCSLIB_VERSION_REGEX}
"\\1.\\2" WCSLIB_VERSION_STRING "${WCSLIB_H}")
STRING(REGEX REPLACE "^([0-9]+)[.]([0-9]+)" "\\1" WCSLIB_VERSION_MAJOR ${WCSLIB_VERSION_STRING})
STRING(REGEX REPLACE "^([0-9]+)[.]([0-9]+)" "\\2" WCSLIB_VERSION_MINOR ${WCSLIB_VERSION_STRING})
else ()
set(WCSLIB_VERSION_STRING "Unknown")
endif ()
endif(WCSLIB_INCLUDE_DIR)
find_library(WCSLIB_LIBRARY wcs
HINTS ${WCSLIB_ROOT_DIR} PATH_SUFFIXES lib)
find_library(M_LIBRARY m)
mark_as_advanced(WCSLIB_INCLUDE_DIR WCSLIB_LIBRARY M_LIBRARY)
if(CMAKE_VERSION VERSION_LESS "2.8.3")
find_package_handle_standard_args(WCSLIB DEFAULT_MSG
WCSLIB_LIBRARY M_LIBRARY WCSLIB_INCLUDE_DIR)
else ()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(WCSLIB
REQUIRED_VARS WCSLIB_LIBRARY M_LIBRARY WCSLIB_INCLUDE_DIR
VERSION_VAR WCSLIB_VERSION_STRING)
endif ()
set(WCSLIB_INCLUDE_DIRS ${WCSLIB_INCLUDE_DIR})
set(WCSLIB_LIBRARIES ${WCSLIB_LIBRARY} ${M_LIBRARY})
endif(NOT WCSLIB_FOUND)
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