cmake/FindCXSparse.cmake - ceres-solver - Git at Google


            
            # Ceres Solver - A fast non-linear least squares minimizer

            
            # Copyright 2013 Google Inc. All rights reserved.

            
            # http://code.google.com/p/ceres-solver/

            
            #

            
            # 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 name of Google Inc. nor the names of its 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 OWNER 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.

            
            #

            
            # Author: alexs.mac@gmail.com (Alex Stewart)

            
            #


            # FindCXSparse.cmake - Find CXSparse libraries & dependencies.

            
            #

            
            # This module defines the following variables which should be referenced

            
            # by the caller to use the library.

            
            #

            
            # CXSPARSE_FOUND: TRUE iff CXSparse and all dependencies have been found.

            
            # CXSPARSE_INCLUDE_DIRS: Include directories for CXSparse.

            
            # CXSPARSE_LIBRARIES: Libraries for CXSparse and all dependencies.

            
            #

            
            # CXSPARSE_VERSION: Extracted from cs.h.

            
            # CXSPARSE_MAIN_VERSION: Equal to 3 if CXSPARSE_VERSION = 3.1.2

            
            # CXSPARSE_SUB_VERSION: Equal to 1 if CXSPARSE_VERSION = 3.1.2

            
            # CXSPARSE_SUBSUB_VERSION: Equal to 2 if CXSPARSE_VERSION = 3.1.2

            
            #

            
            # The following variables control the behaviour of this module:

            
            #

            
            # CXSPARSE_INCLUDE_DIR_HINTS: List of additional directories in which to

            
            #                             search for CXSparse includes,

            
            #                             e.g: /timbuktu/include.

            
            # CXSPARSE_LIBRARY_DIR_HINTS: List of additional directories in which to

            
            #                             search for CXSparse libraries, e.g: /timbuktu/lib.

            
            #

            
            # The following variables are also defined by this module, but in line with

            
            # CMake recommended FindPackage() module style should NOT be referenced directly

            
            # by callers (use the plural variables detailed above instead).  These variables

            
            # do however affect the behaviour of the module via FIND_[PATH/LIBRARY]() which

            
            # are NOT re-called (i.e. search for library is not repeated) if these variables

            
            # are set with valid values _in the CMake cache_. This means that if these

            
            # variables are set directly in the cache, either by the user in the CMake GUI,

            
            # or by the user passing -DVAR=VALUE directives to CMake when called (which

            
            # explicitly defines a cache variable), then they will be used verbatim,

            
            # bypassing the HINTS variables and other hard-coded search locations.

            
            #

            
            # CXSPARSE_INCLUDE_DIR: Include directory for CXSparse, not including the

            
            #                       include directory of any dependencies.

            
            # CXSPARSE_LIBRARY: CXSparse library, not including the libraries of any

            
            #                   dependencies.


            # Called if we failed to find CXSparse or any of it's required dependencies,

            
            # unsets all public (designed to be used externally) variables and reports

            
            # error message at priority depending upon [REQUIRED/QUIET/<NONE>] argument.

            
            MACRO(CXSPARSE_REPORT_NOT_FOUND REASON_MSG)

            
              UNSET(CXSPARSE_FOUND)

            
              UNSET(CXSPARSE_INCLUDE_DIRS)

            
              UNSET(CXSPARSE_LIBRARIES)

            
              # Make results of search visible in the CMake GUI if CXSparse has not

            
              # been found so that user does not have to toggle to advanced view.

            
              MARK_AS_ADVANCED(CLEAR CXSPARSE_INCLUDE_DIR

            
                                     CXSPARSE_LIBRARY)

            
              # Note <package>_FIND_[REQUIRED/QUIETLY] variables defined by FindPackage()

            
              # use the camelcase library name, not uppercase.

            
              IF (CXSparse_FIND_QUIETLY)

            
                MESSAGE(STATUS "Failed to find CXSparse - " ${REASON_MSG} ${ARGN})

            
              ELSEIF (CXSparse_FIND_REQUIRED)

            
                MESSAGE(FATAL_ERROR "Failed to find CXSparse - " ${REASON_MSG} ${ARGN})

            
              ELSE()

            
                # Neither QUIETLY nor REQUIRED, use no priority which emits a message

            
                # but continues configuration and allows generation.

            
                MESSAGE("-- Failed to find CXSparse - " ${REASON_MSG} ${ARGN})

            
              ENDIF ()

            
            ENDMACRO(CXSPARSE_REPORT_NOT_FOUND)


            # Search user-installed locations first, so that we prefer user installs

            
            # to system installs where both exist.

            
            #

            
            # TODO: Add standard Windows search locations for CXSparse.

            
            LIST(APPEND CXSPARSE_CHECK_INCLUDE_DIRS

            
              /usr/local/include

            
              /usr/local/homebrew/include # Mac OS X

            
              /opt/local/var/macports/software # Mac OS X.

            
              /opt/local/include

            
              /usr/include)

            
            LIST(APPEND CXSPARSE_CHECK_LIBRARY_DIRS

            
              /usr/local/lib

            
              /usr/local/homebrew/lib # Mac OS X.

            
              /opt/local/lib

            
              /usr/lib)


            # Search supplied hint directories first if supplied.

            
            FIND_PATH(CXSPARSE_INCLUDE_DIR

            
              NAMES cs.h

            
              PATHS ${CXSPARSE_INCLUDE_DIR_HINTS}

            
              ${CXSPARSE_CHECK_INCLUDE_DIRS})

            
            IF (NOT CXSPARSE_INCLUDE_DIR OR

            
                NOT EXISTS ${CXSPARSE_INCLUDE_DIR})

            
              CXSPARSE_REPORT_NOT_FOUND(

            
                "Could not find CXSparse include directory, set CXSPARSE_INCLUDE_DIR "

            
                "to directory containing cs.h")

            
            ENDIF (NOT CXSPARSE_INCLUDE_DIR OR

            
                   NOT EXISTS ${CXSPARSE_INCLUDE_DIR})


            FIND_LIBRARY(CXSPARSE_LIBRARY NAMES cxsparse

            
              PATHS ${CXSPARSE_LIBRARY_DIR_HINTS}

            
              ${CXSPARSE_CHECK_LIBRARY_DIRS})

            
            IF (NOT CXSPARSE_LIBRARY OR

            
                NOT EXISTS ${CXSPARSE_LIBRARY})

            
              CXSPARSE_REPORT_NOT_FOUND(

            
                "Could not find CXSparse library, set CXSPARSE_LIBRARY "

            
                "to full path to libcxsparse.")

            
            ENDIF (NOT CXSPARSE_LIBRARY OR

            
                   NOT EXISTS ${CXSPARSE_LIBRARY})


            # Mark internally as found, then verify. CXSPARSE_REPORT_NOT_FOUND() unsets

            
            # if called.

            
            SET(CXSPARSE_FOUND TRUE)


            # Extract CXSparse version from cs.h

            
            IF (CXSPARSE_INCLUDE_DIR)

            
              SET(CXSPARSE_VERSION_FILE ${CXSPARSE_INCLUDE_DIR}/cs.h)

            
              IF (NOT EXISTS ${CXSPARSE_VERSION_FILE})

            
                CXSPARSE_REPORT_NOT_FOUND(

            
                  "Could not find file: ${CXSPARSE_VERSION_FILE} "

            
                  "containing version information in CXSparse install located at: "

            
                  "${CXSPARSE_INCLUDE_DIR}.")

            
              ELSE (NOT EXISTS ${CXSPARSE_VERSION_FILE})

            
                FILE(READ ${CXSPARSE_INCLUDE_DIR}/cs.h CXSPARSE_VERSION_FILE_CONTENTS)


                STRING(REGEX MATCH "#define CS_VER [0-9]+"

            
                  CXSPARSE_MAIN_VERSION "${CXSPARSE_VERSION_FILE_CONTENTS}")

            
                STRING(REGEX REPLACE "#define CS_VER ([0-9]+)" "\\1"

            
                  CXSPARSE_MAIN_VERSION "${CXSPARSE_MAIN_VERSION}")


                STRING(REGEX MATCH "#define CS_SUBVER [0-9]+"

            
                  CXSPARSE_SUB_VERSION "${CXSPARSE_VERSION_FILE_CONTENTS}")

            
                STRING(REGEX REPLACE "#define CS_SUBVER ([0-9]+)" "\\1"

            
                  CXSPARSE_SUB_VERSION "${CXSPARSE_SUB_VERSION}")


                STRING(REGEX MATCH "#define CS_SUBSUB [0-9]+"

            
                  CXSPARSE_SUBSUB_VERSION "${CXSPARSE_VERSION_FILE_CONTENTS}")

            
                STRING(REGEX REPLACE "#define CS_SUBSUB ([0-9]+)" "\\1"

            
                  CXSPARSE_SUBSUB_VERSION "${CXSPARSE_SUBSUB_VERSION}")


                # This is on a single line s/t CMake does not interpret it as a list of

            
                # elements and insert ';' separators which would result in 3.;1.;2 nonsense.

            
                SET(CXSPARSE_VERSION "${CXSPARSE_MAIN_VERSION}.${CXSPARSE_SUB_VERSION}.${CXSPARSE_SUBSUB_VERSION}")

            
              ENDIF (NOT EXISTS ${CXSPARSE_VERSION_FILE})

            
            ENDIF (CXSPARSE_INCLUDE_DIR)


            # Catch the case when the caller has set CXSPARSE_LIBRARY in the cache / GUI and

            
            # thus FIND_LIBRARY was not called, but specified library is invalid, otherwise

            
            # we would report CXSparse as found.

            
            # TODO: This regex for CXSparse library is pretty primitive, we use lowercase

            
            #       for comparison to handle Windows using CamelCase library names, could

            
            #       this check be better?

            
            STRING(TOLOWER "${CXSPARSE_LIBRARY}" LOWERCASE_CXSPARSE_LIBRARY)

            
            IF (CXSPARSE_LIBRARY AND

            
                EXISTS ${CXSPARSE_LIBRARY} AND

            
                NOT "${LOWERCASE_CXSPARSE_LIBRARY}" MATCHES ".*cxsparse[^/]*")

            
              CXSPARSE_REPORT_NOT_FOUND(

            
                "Caller defined CXSPARSE_LIBRARY: "

            
                "${CXSPARSE_LIBRARY} does not match CXSparse.")

            
            ENDIF (CXSPARSE_LIBRARY AND

            
                   EXISTS ${CXSPARSE_LIBRARY} AND

            
                   NOT "${LOWERCASE_CXSPARSE_LIBRARY}" MATCHES ".*cxsparse[^/]*")


            # Set standard CMake FindPackage variables if found.

            
            IF (CXSPARSE_FOUND)

            
              SET(CXSPARSE_INCLUDE_DIRS ${CXSPARSE_INCLUDE_DIR})

            
              SET(CXSPARSE_LIBRARIES ${CXSPARSE_LIBRARY})

            
            ENDIF (CXSPARSE_FOUND)


            # Handle REQUIRED / QUIET optional arguments and version.

            
            INCLUDE(FindPackageHandleStandardArgs)

            
            FIND_PACKAGE_HANDLE_STANDARD_ARGS(CXSparse

            
              REQUIRED_VARS CXSPARSE_INCLUDE_DIRS CXSPARSE_LIBRARIES

            
              VERSION_VAR CXSPARSE_VERSION)


            # Only mark internal variables as advanced if we found CXSparse, otherwise

            
            # leave them visible in the standard GUI for the user to set manually.

            
            IF (CXSPARSE_FOUND)

            
              MARK_AS_ADVANCED(FORCE CXSPARSE_INCLUDE_DIR

            
                                     CXSPARSE_LIBRARY)

            
            ENDIF (CXSPARSE_FOUND)
	# Ceres Solver - A fast non-linear least squares minimizer
	# Copyright 2013 Google Inc. All rights reserved.
	# http://code.google.com/p/ceres-solver/
	#
	# 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 name of Google Inc. nor the names of its 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 OWNER 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.
	#
	# Author: alexs.mac@gmail.com (Alex Stewart)
	#

	# FindCXSparse.cmake - Find CXSparse libraries & dependencies.
	#
	# This module defines the following variables which should be referenced
	# by the caller to use the library.
	#
	# CXSPARSE_FOUND: TRUE iff CXSparse and all dependencies have been found.
	# CXSPARSE_INCLUDE_DIRS: Include directories for CXSparse.
	# CXSPARSE_LIBRARIES: Libraries for CXSparse and all dependencies.
	#
	# CXSPARSE_VERSION: Extracted from cs.h.
	# CXSPARSE_MAIN_VERSION: Equal to 3 if CXSPARSE_VERSION = 3.1.2
	# CXSPARSE_SUB_VERSION: Equal to 1 if CXSPARSE_VERSION = 3.1.2
	# CXSPARSE_SUBSUB_VERSION: Equal to 2 if CXSPARSE_VERSION = 3.1.2
	#
	# The following variables control the behaviour of this module:
	#
	# CXSPARSE_INCLUDE_DIR_HINTS: List of additional directories in which to
	# search for CXSparse includes,
	# e.g: /timbuktu/include.
	# CXSPARSE_LIBRARY_DIR_HINTS: List of additional directories in which to
	# search for CXSparse libraries, e.g: /timbuktu/lib.
	#
	# The following variables are also defined by this module, but in line with
	# CMake recommended FindPackage() module style should NOT be referenced directly
	# by callers (use the plural variables detailed above instead). These variables
	# do however affect the behaviour of the module via FIND_[PATH/LIBRARY]() which
	# are NOT re-called (i.e. search for library is not repeated) if these variables
	# are set with valid values _in the CMake cache_. This means that if these
	# variables are set directly in the cache, either by the user in the CMake GUI,
	# or by the user passing -DVAR=VALUE directives to CMake when called (which
	# explicitly defines a cache variable), then they will be used verbatim,
	# bypassing the HINTS variables and other hard-coded search locations.
	#
	# CXSPARSE_INCLUDE_DIR: Include directory for CXSparse, not including the
	# include directory of any dependencies.
	# CXSPARSE_LIBRARY: CXSparse library, not including the libraries of any
	# dependencies.

	# Called if we failed to find CXSparse or any of it's required dependencies,
	# unsets all public (designed to be used externally) variables and reports
	# error message at priority depending upon [REQUIRED/QUIET/<NONE>] argument.
	MACRO(CXSPARSE_REPORT_NOT_FOUND REASON_MSG)
	UNSET(CXSPARSE_FOUND)
	UNSET(CXSPARSE_INCLUDE_DIRS)
	UNSET(CXSPARSE_LIBRARIES)
	# Make results of search visible in the CMake GUI if CXSparse has not
	# been found so that user does not have to toggle to advanced view.
	MARK_AS_ADVANCED(CLEAR CXSPARSE_INCLUDE_DIR
	CXSPARSE_LIBRARY)
	# Note <package>_FIND_[REQUIRED/QUIETLY] variables defined by FindPackage()
	# use the camelcase library name, not uppercase.
	IF (CXSparse_FIND_QUIETLY)
	MESSAGE(STATUS "Failed to find CXSparse - " ${REASON_MSG} ${ARGN})
	ELSEIF (CXSparse_FIND_REQUIRED)
	MESSAGE(FATAL_ERROR "Failed to find CXSparse - " ${REASON_MSG} ${ARGN})
	ELSE()
	# Neither QUIETLY nor REQUIRED, use no priority which emits a message
	# but continues configuration and allows generation.
	MESSAGE("-- Failed to find CXSparse - " ${REASON_MSG} ${ARGN})
	ENDIF ()
	ENDMACRO(CXSPARSE_REPORT_NOT_FOUND)

	# Search user-installed locations first, so that we prefer user installs
	# to system installs where both exist.
	#
	# TODO: Add standard Windows search locations for CXSparse.
	LIST(APPEND CXSPARSE_CHECK_INCLUDE_DIRS
	/usr/local/include
	/usr/local/homebrew/include # Mac OS X
	/opt/local/var/macports/software # Mac OS X.
	/opt/local/include
	/usr/include)
	LIST(APPEND CXSPARSE_CHECK_LIBRARY_DIRS
	/usr/local/lib
	/usr/local/homebrew/lib # Mac OS X.
	/opt/local/lib
	/usr/lib)

	# Search supplied hint directories first if supplied.
	FIND_PATH(CXSPARSE_INCLUDE_DIR
	NAMES cs.h
	PATHS ${CXSPARSE_INCLUDE_DIR_HINTS}
	${CXSPARSE_CHECK_INCLUDE_DIRS})
	IF (NOT CXSPARSE_INCLUDE_DIR OR
	NOT EXISTS ${CXSPARSE_INCLUDE_DIR})
	CXSPARSE_REPORT_NOT_FOUND(
	"Could not find CXSparse include directory, set CXSPARSE_INCLUDE_DIR "
	"to directory containing cs.h")
	ENDIF (NOT CXSPARSE_INCLUDE_DIR OR
	NOT EXISTS ${CXSPARSE_INCLUDE_DIR})

	FIND_LIBRARY(CXSPARSE_LIBRARY NAMES cxsparse
	PATHS ${CXSPARSE_LIBRARY_DIR_HINTS}
	${CXSPARSE_CHECK_LIBRARY_DIRS})
	IF (NOT CXSPARSE_LIBRARY OR
	NOT EXISTS ${CXSPARSE_LIBRARY})
	CXSPARSE_REPORT_NOT_FOUND(
	"Could not find CXSparse library, set CXSPARSE_LIBRARY "
	"to full path to libcxsparse.")
	ENDIF (NOT CXSPARSE_LIBRARY OR
	NOT EXISTS ${CXSPARSE_LIBRARY})

	# Mark internally as found, then verify. CXSPARSE_REPORT_NOT_FOUND() unsets
	# if called.
	SET(CXSPARSE_FOUND TRUE)

	# Extract CXSparse version from cs.h
	IF (CXSPARSE_INCLUDE_DIR)
	SET(CXSPARSE_VERSION_FILE ${CXSPARSE_INCLUDE_DIR}/cs.h)
	IF (NOT EXISTS ${CXSPARSE_VERSION_FILE})
	CXSPARSE_REPORT_NOT_FOUND(
	"Could not find file: ${CXSPARSE_VERSION_FILE} "
	"containing version information in CXSparse install located at: "
	"${CXSPARSE_INCLUDE_DIR}.")
	ELSE (NOT EXISTS ${CXSPARSE_VERSION_FILE})
	FILE(READ ${CXSPARSE_INCLUDE_DIR}/cs.h CXSPARSE_VERSION_FILE_CONTENTS)

	STRING(REGEX MATCH "#define CS_VER [0-9]+"
	CXSPARSE_MAIN_VERSION "${CXSPARSE_VERSION_FILE_CONTENTS}")
	STRING(REGEX REPLACE "#define CS_VER ([0-9]+)" "\\1"
	CXSPARSE_MAIN_VERSION "${CXSPARSE_MAIN_VERSION}")

	STRING(REGEX MATCH "#define CS_SUBVER [0-9]+"
	CXSPARSE_SUB_VERSION "${CXSPARSE_VERSION_FILE_CONTENTS}")
	STRING(REGEX REPLACE "#define CS_SUBVER ([0-9]+)" "\\1"
	CXSPARSE_SUB_VERSION "${CXSPARSE_SUB_VERSION}")

	STRING(REGEX MATCH "#define CS_SUBSUB [0-9]+"
	CXSPARSE_SUBSUB_VERSION "${CXSPARSE_VERSION_FILE_CONTENTS}")
	STRING(REGEX REPLACE "#define CS_SUBSUB ([0-9]+)" "\\1"
	CXSPARSE_SUBSUB_VERSION "${CXSPARSE_SUBSUB_VERSION}")

	# This is on a single line s/t CMake does not interpret it as a list of
	# elements and insert ';' separators which would result in 3.;1.;2 nonsense.
	SET(CXSPARSE_VERSION "${CXSPARSE_MAIN_VERSION}.${CXSPARSE_SUB_VERSION}.${CXSPARSE_SUBSUB_VERSION}")
	ENDIF (NOT EXISTS ${CXSPARSE_VERSION_FILE})
	ENDIF (CXSPARSE_INCLUDE_DIR)

	# Catch the case when the caller has set CXSPARSE_LIBRARY in the cache / GUI and
	# thus FIND_LIBRARY was not called, but specified library is invalid, otherwise
	# we would report CXSparse as found.
	# TODO: This regex for CXSparse library is pretty primitive, we use lowercase
	# for comparison to handle Windows using CamelCase library names, could
	# this check be better?
	STRING(TOLOWER "${CXSPARSE_LIBRARY}" LOWERCASE_CXSPARSE_LIBRARY)
	IF (CXSPARSE_LIBRARY AND
	EXISTS ${CXSPARSE_LIBRARY} AND
	NOT "${LOWERCASE_CXSPARSE_LIBRARY}" MATCHES ".cxsparse[^/]")
	CXSPARSE_REPORT_NOT_FOUND(
	"Caller defined CXSPARSE_LIBRARY: "
	"${CXSPARSE_LIBRARY} does not match CXSparse.")
	ENDIF (CXSPARSE_LIBRARY AND
	EXISTS ${CXSPARSE_LIBRARY} AND
	NOT "${LOWERCASE_CXSPARSE_LIBRARY}" MATCHES ".cxsparse[^/]")

	# Set standard CMake FindPackage variables if found.
	IF (CXSPARSE_FOUND)
	SET(CXSPARSE_INCLUDE_DIRS ${CXSPARSE_INCLUDE_DIR})
	SET(CXSPARSE_LIBRARIES ${CXSPARSE_LIBRARY})
	ENDIF (CXSPARSE_FOUND)

	# Handle REQUIRED / QUIET optional arguments and version.
	INCLUDE(FindPackageHandleStandardArgs)
	FIND_PACKAGE_HANDLE_STANDARD_ARGS(CXSparse
	REQUIRED_VARS CXSPARSE_INCLUDE_DIRS CXSPARSE_LIBRARIES
	VERSION_VAR CXSPARSE_VERSION)

	# Only mark internal variables as advanced if we found CXSparse, otherwise
	# leave them visible in the standard GUI for the user to set manually.
	IF (CXSPARSE_FOUND)
	MARK_AS_ADVANCED(FORCE CXSPARSE_INCLUDE_DIR
	CXSPARSE_LIBRARY)
	ENDIF (CXSPARSE_FOUND)