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| # SPDX-FileCopyrightText: 2018 Christophe Giboudeaux <[email protected]> | ||
| # SPDX-FileCopyrightText: 2010 Alexander Neundorf <[email protected]> | ||
| # SPDX-FileCopyrightText: 2008 Gilles Caulier <[email protected]> | ||
| # | ||
| # SPDX-License-Identifier: BSD-3-Clause | ||
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| #[=======================================================================[.rst: | ||
| FindLibExiv2 | ||
| ------------ | ||
| Try to find the Exiv2 library. | ||
| This will define the following variables: | ||
| ``LibExiv2_FOUND`` | ||
| True if (the requested version of) Exiv2 is available | ||
| ``LibExiv2_VERSION`` | ||
| The version of Exiv2 | ||
| ``LibExiv2_INCLUDE_DIRS`` | ||
| The include dirs of Exiv2 for use with target_include_directories() | ||
| ``LibExiv2_LIBRARIES`` | ||
| The Exiv2 library for use with target_link_libraries(). | ||
| This can be passed to target_link_libraries() instead of | ||
| the ``LibExiv2::LibExiv2`` target | ||
| If ``LibExiv2_FOUND`` is TRUE, it will also define the following imported | ||
| target: | ||
| ``LibExiv2::LibExiv2`` | ||
| The Exiv2 library | ||
| In general we recommend using the imported target, as it is easier to use. | ||
| Bear in mind, however, that if the target is in the link interface of an | ||
| exported library, it must be made available by the package config file. | ||
| Since 5.53.0. | ||
| #]=======================================================================] | ||
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| # find_package(exiv2 REQUIRED CONFIG NAMES exiv2) | ||
| find_package(PkgConfig QUIET) | ||
| pkg_check_modules(PC_EXIV2 QUIET exiv2) | ||
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| find_path(LibExiv2_INCLUDE_DIRS NAMES exiv2/exif.hpp | ||
| HINTS ${PC_EXIV2_INCLUDEDIR} | ||
| ) | ||
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| find_library(LibExiv2_LIBRARIES NAMES exiv2 libexiv2 | ||
| HINTS ${PC_EXIV2_LIBRARY_DIRS} | ||
| ) | ||
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| set(LibExiv2_VERSION ${PC_EXIV2_VERSION}) | ||
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| if(NOT LibExiv2_VERSION AND DEFINED LibExiv2_INCLUDE_DIRS) | ||
| # With exiv >= 0.27, the version #defines are in exv_conf.h instead of version.hpp | ||
| foreach(_exiv2_version_file "version.hpp" "exv_conf.h") | ||
| if(EXISTS "${LibExiv2_INCLUDE_DIRS}/exiv2/${_exiv2_version_file}") | ||
| file(READ "${LibExiv2_INCLUDE_DIRS}/exiv2/${_exiv2_version_file}" _exiv_version_file_content) | ||
| string(REGEX MATCH "#define EXIV2_MAJOR_VERSION[ ]+\\([0-9]+U?\\)" EXIV2_MAJOR_VERSION_MATCH ${_exiv_version_file_content}) | ||
| string(REGEX MATCH "#define EXIV2_MINOR_VERSION[ ]+\\([0-9]+U?\\)" EXIV2_MINOR_VERSION_MATCH ${_exiv_version_file_content}) | ||
| string(REGEX MATCH "#define EXIV2_PATCH_VERSION[ ]+\\([0-9]+U?\\)" EXIV2_PATCH_VERSION_MATCH ${_exiv_version_file_content}) | ||
| if(EXIV2_MAJOR_VERSION_MATCH) | ||
| string(REGEX REPLACE ".*_MAJOR_VERSION[ ]+\\(([0-9]*)U?\\)" "\\1" EXIV2_MAJOR_VERSION ${EXIV2_MAJOR_VERSION_MATCH}) | ||
| string(REGEX REPLACE ".*_MINOR_VERSION[ ]+\\(([0-9]*)U?\\)" "\\1" EXIV2_MINOR_VERSION ${EXIV2_MINOR_VERSION_MATCH}) | ||
| string(REGEX REPLACE ".*_PATCH_VERSION[ ]+\\(([0-9]*)U?\\)" "\\1" EXIV2_PATCH_VERSION ${EXIV2_PATCH_VERSION_MATCH}) | ||
| endif() | ||
| endif() | ||
| endforeach() | ||
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| set(LibExiv2_VERSION "${EXIV2_MAJOR_VERSION}.${EXIV2_MINOR_VERSION}.${EXIV2_PATCH_VERSION}") | ||
| endif() | ||
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| include(FindPackageHandleStandardArgs) | ||
| find_package_handle_standard_args(LibExiv2 | ||
| FOUND_VAR LibExiv2_FOUND | ||
| REQUIRED_VARS LibExiv2_LIBRARIES LibExiv2_INCLUDE_DIRS | ||
| VERSION_VAR LibExiv2_VERSION | ||
| ) | ||
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| mark_as_advanced(LibExiv2_INCLUDE_DIRS LibExiv2_LIBRARIES) | ||
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| if(LibExiv2_FOUND AND NOT TARGET LibExiv2::LibExiv2) | ||
| add_library(LibExiv2::LibExiv2 UNKNOWN IMPORTED) | ||
| set_target_properties(LibExiv2::LibExiv2 PROPERTIES | ||
| IMPORTED_LOCATION "${LibExiv2_LIBRARIES}" | ||
| INTERFACE_INCLUDE_DIRECTORIES "${LibExiv2_INCLUDE_DIRS}" | ||
| ) | ||
| if (LibExiv2_VERSION VERSION_LESS 0.28.0) | ||
| # exiv2 0.27 or older still uses std::auto_ptr, which is no longer available | ||
| # by default when using newer C++ versions | ||
| set_target_properties(LibExiv2::LibExiv2 PROPERTIES | ||
| INTERFACE_COMPILE_DEFINITIONS "_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR=1;_HAS_AUTO_PTR_ETC=1" | ||
| ) | ||
| endif() | ||
| endif() | ||
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| include(FeatureSummary) | ||
| set_package_properties(LibExiv2 PROPERTIES | ||
| URL "https://www.exiv2.org" | ||
| DESCRIPTION "Image metadata support" | ||
| ) |
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