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132 lines
4.3 KiB
132 lines
4.3 KiB
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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FindLibXml2
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-----------
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Find the XML processing library (libxml2).
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IMPORTED Targets
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^^^^^^^^^^^^^^^^
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.. versionadded:: 3.12
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The following :prop_tgt:`IMPORTED` targets may be defined:
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``LibXml2::LibXml2``
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libxml2 library.
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``LibXml2::xmllint``
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.. versionadded:: 3.17
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xmllint command-line executable.
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Result variables
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^^^^^^^^^^^^^^^^
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This module will set the following variables in your project:
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``LibXml2_FOUND``
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true if libxml2 headers and libraries were found
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``LIBXML2_INCLUDE_DIR``
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the directory containing LibXml2 headers
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``LIBXML2_INCLUDE_DIRS``
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list of the include directories needed to use LibXml2
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``LIBXML2_LIBRARIES``
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LibXml2 libraries to be linked
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``LIBXML2_DEFINITIONS``
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the compiler switches required for using LibXml2
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``LIBXML2_XMLLINT_EXECUTABLE``
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path to the XML checking tool xmllint coming with LibXml2
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``LIBXML2_VERSION_STRING``
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the version of LibXml2 found (since CMake 2.8.8)
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Cache variables
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^^^^^^^^^^^^^^^
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The following cache variables may also be set:
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``LIBXML2_INCLUDE_DIR``
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the directory containing LibXml2 headers
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``LIBXML2_LIBRARY``
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path to the LibXml2 library
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#]=======================================================================]
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cmake_policy(PUSH)
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cmake_policy(SET CMP0159 NEW) # file(STRINGS) with REGEX updates CMAKE_MATCH_<n>
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# use pkg-config to get the directories and then use these values
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# in the find_path() and find_library() calls
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find_package(PkgConfig QUIET)
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if(PKG_CONFIG_FOUND)
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PKG_CHECK_MODULES(PC_LIBXML QUIET libxml-2.0)
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endif()
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find_path(LIBXML2_INCLUDE_DIR NAMES libxml/xpath.h
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HINTS
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${PC_LIBXML_INCLUDEDIR}
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${PC_LIBXML_INCLUDE_DIRS}
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PATH_SUFFIXES libxml2
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)
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# CMake 3.9 and below used 'LIBXML2_LIBRARIES' as the name of
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# the cache entry storing the find_library result. Use the
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# value if it was set by the project or user.
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if(DEFINED LIBXML2_LIBRARIES AND NOT DEFINED LIBXML2_LIBRARY)
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set(LIBXML2_LIBRARY ${LIBXML2_LIBRARIES})
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endif()
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find_library(LIBXML2_LIBRARY NAMES xml2 libxml2 libxml2_a
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HINTS
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${PC_LIBXML_LIBDIR}
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${PC_LIBXML_LIBRARY_DIRS}
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)
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find_program(LIBXML2_XMLLINT_EXECUTABLE xmllint)
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# for backwards compat. with KDE 4.0.x:
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set(XMLLINT_EXECUTABLE "${LIBXML2_XMLLINT_EXECUTABLE}")
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if(LIBXML2_INCLUDE_DIR AND EXISTS "${LIBXML2_INCLUDE_DIR}/libxml/xmlversion.h")
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file(STRINGS "${LIBXML2_INCLUDE_DIR}/libxml/xmlversion.h" libxml2_version_str
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REGEX "^#define[\t ]+LIBXML_DOTTED_VERSION[\t ]+\".*\"")
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string(REGEX REPLACE "^#define[\t ]+LIBXML_DOTTED_VERSION[\t ]+\"([^\"]*)\".*" "\\1"
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LIBXML2_VERSION_STRING "${libxml2_version_str}")
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unset(libxml2_version_str)
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endif()
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set(LIBXML2_INCLUDE_DIRS ${LIBXML2_INCLUDE_DIR})
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set(LIBXML2_LIBRARIES ${LIBXML2_LIBRARY})
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# Did we find the same installation as pkg-config?
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# If so, use additional information from it.
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unset(LIBXML2_DEFINITIONS)
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foreach(libxml2_pc_lib_dir IN LISTS PC_LIBXML_LIBDIR PC_LIBXML_LIBRARY_DIRS)
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if (LIBXML2_LIBRARY MATCHES "^${libxml2_pc_lib_dir}")
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list(APPEND LIBXML2_INCLUDE_DIRS ${PC_LIBXML_INCLUDE_DIRS})
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set(LIBXML2_DEFINITIONS ${PC_LIBXML_CFLAGS_OTHER})
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break()
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endif()
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endforeach()
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibXml2
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REQUIRED_VARS LIBXML2_LIBRARY LIBXML2_INCLUDE_DIR
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VERSION_VAR LIBXML2_VERSION_STRING)
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mark_as_advanced(LIBXML2_INCLUDE_DIR LIBXML2_LIBRARY LIBXML2_XMLLINT_EXECUTABLE)
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if(LibXml2_FOUND AND NOT TARGET LibXml2::LibXml2)
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add_library(LibXml2::LibXml2 UNKNOWN IMPORTED)
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set_target_properties(LibXml2::LibXml2 PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${LIBXML2_INCLUDE_DIRS}")
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set_target_properties(LibXml2::LibXml2 PROPERTIES INTERFACE_COMPILE_OPTIONS "${LIBXML2_DEFINITIONS}")
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set_property(TARGET LibXml2::LibXml2 APPEND PROPERTY IMPORTED_LOCATION "${LIBXML2_LIBRARY}")
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endif()
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if(LIBXML2_XMLLINT_EXECUTABLE AND NOT TARGET LibXml2::xmllint)
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add_executable(LibXml2::xmllint IMPORTED)
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set_target_properties(LibXml2::xmllint PROPERTIES IMPORTED_LOCATION "${LIBXML2_XMLLINT_EXECUTABLE}")
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endif()
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cmake_policy(POP)
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