Differential D17810 Diff 48270 cmake/modules/FindLibExiv2.cmake

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cmake/modules/FindLibExiv2.cmake

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		1		#.rst:
		2		# FindLibExiv2
		3		# ------------
		4		#
		5		# Try to find the Exiv2 library.
		6		#
		7		# This will define the following variables:
		8		#
		9		# ``LibExiv2_FOUND``
		10		# System has LibExiv2.
		11		#
		12		# ``LibExiv2_VERSION``
		13		# The version of LibExiv2.
		14		#
		15		# ``LibExiv2_INCLUDE_DIRS``
		16		# This should be passed to target_include_directories() if
		17		# the target is not used for linking.
		18		#
		19		# ``LibExiv2_LIBRARIES``
		20		# The LibExiv2 library.
		21		# This can be passed to target_link_libraries() instead of
		22		# the ``LibExiv2::LibExiv2`` target
		23		#
		24		# If ``LibExiv2_FOUND`` is TRUE, the following imported target
		25		# will be available:
		26		#
		27		# ``LibExiv2::LibExiv2``
		28		# The Exiv2 library
		29		#
		30		# Since 5.53.0.
		31		#
		32		#=============================================================================
		33		# Copyright (c) 2018, Christophe Giboudeaux, <christophe@krop.fr>
		34		# Copyright (c) 2010, Alexander Neundorf, <neundorf@kde.org>
		35		# Copyright (c) 2008, Gilles Caulier, <caulier.gilles@gmail.com>
		36		#
		37		#
		38		# Redistribution and use in source and binary forms, with or without
		39		# modification, are permitted provided that the following conditions
		40		# are met:
		41		#
		42		# 1. Redistributions of source code must retain the copyright
		43		# notice, this list of conditions and the following disclaimer.
		44		# 2. Redistributions in binary form must reproduce the copyright
		45		# notice, this list of conditions and the following disclaimer in the
		46		# documentation and/or other materials provided with the distribution.
		47		# 3. The name of the author may not be used to endorse or promote products
		48		# derived from this software without specific prior written permission.
		49		#
		50		# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
		51		# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
		52		# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
		53		# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
		54		# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
		55		# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		56		# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		57		# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		58		# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
		59		# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		60		#=============================================================================
		61
		62		find_package(PkgConfig QUIET)
		63		pkg_check_modules(PC_EXIV2 QUIET exiv2)
		64
		65		find_path(LibExiv2_INCLUDE_DIRS NAMES exiv2/exif.hpp
		66		HINTS ${PC_EXIV2_INCLUDEDIR}
		67		)
		68
		69		find_library(LibExiv2_LIBRARIES NAMES exiv2 libexiv2
		70		HINTS ${PC_EXIV2_LIBRARY_DIRS}
		71		)
		72
		73		set(LibExiv2_VERSION ${PC_EXIV2_VERSION})
		74
		75		if(NOT LibExiv2_VERSION AND DEFINED LibExiv2_INCLUDE_DIRS)
		76		# With exiv >= 0.27, the version #defines are in exv_conf.h instead of version.hpp
		77		foreach(_exiv2_version_file "version.hpp" "exv_conf.h")
		78		if(EXISTS "${LibExiv2_INCLUDE_DIRS}/exiv2/${_exiv2_version_file}")
		79		file(READ "${LibExiv2_INCLUDE_DIRS}/exiv2/${_exiv2_version_file}" _exiv_version_file_content)
		80		string(REGEX MATCH "#define EXIV2_MAJOR_VERSION[ ]+\$[0-9]+\$" EXIV2_MAJOR_VERSION_MATCH ${_exiv_version_file_content})
		81		string(REGEX MATCH "#define EXIV2_MINOR_VERSION[ ]+\$[0-9]+\$" EXIV2_MINOR_VERSION_MATCH ${_exiv_version_file_content})
		82		string(REGEX MATCH "#define EXIV2_PATCH_VERSION[ ]+\$[0-9]+\$" EXIV2_PATCH_VERSION_MATCH ${_exiv_version_file_content})
		83		if(EXIV2_MAJOR_VERSION_MATCH)
		84		string(REGEX REPLACE "._MAJOR_VERSION[ ]+\$(.)\$" "\\1" EXIV2_MAJOR_VERSION ${EXIV2_MAJOR_VERSION_MATCH})
		85		string(REGEX REPLACE "._MINOR_VERSION[ ]+\$(.)\$" "\\1" EXIV2_MINOR_VERSION ${EXIV2_MINOR_VERSION_MATCH})
		86		string(REGEX REPLACE "._PATCH_VERSION[ ]+\$(.)\$" "\\1" EXIV2_PATCH_VERSION ${EXIV2_PATCH_VERSION_MATCH})
		87		endif()
		88		endif()
		89		endforeach()
		90
		91		set(LibExiv2_VERSION "${EXIV2_MAJOR_VERSION}.${EXIV2_MINOR_VERSION}.${EXIV2_PATCH_VERSION}")
		92		endif()
		93
		94		include(FindPackageHandleStandardArgs)
		95		find_package_handle_standard_args(LibExiv2
		96		FOUND_VAR LibExiv2_FOUND
		97		REQUIRED_VARS LibExiv2_LIBRARIES LibExiv2_INCLUDE_DIRS
		98		VERSION_VAR LibExiv2_VERSION
		99		)
		100
		101		mark_as_advanced(LibExiv2_INCLUDE_DIRS LibExiv2_LIBRARIES)
		102
		103		if(LibExiv2_FOUND AND NOT TARGET LibExiv2::LibExiv2)
		104		add_library(LibExiv2::LibExiv2 UNKNOWN IMPORTED)
		105		set_target_properties(LibExiv2::LibExiv2 PROPERTIES
		106		IMPORTED_LOCATION "${LibExiv2_LIBRARIES}"
		107		INTERFACE_INCLUDE_DIRECTORIES "${LibExiv2_INCLUDE_DIRS}"
		108		)
		109		endif()
		110
		111		include(FeatureSummary)
		112		set_package_properties(LibExiv2 PROPERTIES
		113		URL "http://www.exiv2.org"
		114		DESCRIPTION "Image metadata support"
		115		)