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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
FindLibXml2
-----------
Find the XML processing library (libxml2).
IMPORTED Targets
^^^^^^^^^^^^^^^^
This module defines :prop_tgt:`IMPORTED` target ``LibXml2::LibXml2``, if
libxml2 has been found.
Result variables
^^^^^^^^^^^^^^^^
This module will set the following variables in your project:
``LIBXML2_FOUND``
true if libxml2 headers and libraries were found
``LIBXML2_INCLUDE_DIR``
the directory containing LibXml2 headers
``LIBXML2_INCLUDE_DIRS``
list of the include directories needed to use LibXml2
``LIBXML2_LIBRARIES``
LibXml2 libraries to be linked
``LIBXML2_DEFINITIONS``
the compiler switches required for using LibXml2
``LIBXML2_XMLLINT_EXECUTABLE``
path to the XML checking tool xmllint coming with LibXml2
``LIBXML2_VERSION_STRING``
the version of LibXml2 found (since CMake 2.8.8)
Cache variables
^^^^^^^^^^^^^^^
The following cache variables may also be set:
``LIBXML2_INCLUDE_DIR``
the directory containing LibXml2 headers
``LIBXML2_LIBRARY``
path to the LibXml2 library
#]=======================================================================]
# use pkg-config to get the directories and then use these values
# in the find_path() and find_library() calls
find_package(PkgConfig QUIET)
PKG_CHECK_MODULES(PC_LIBXML QUIET libxml-2.0)
set(LIBXML2_DEFINITIONS ${PC_LIBXML_CFLAGS_OTHER})
find_path(LIBXML2_INCLUDE_DIR NAMES libxml/xpath.h
HINTS
${PC_LIBXML_INCLUDEDIR}
${PC_LIBXML_INCLUDE_DIRS}
PATH_SUFFIXES libxml2
)
# CMake 3.9 and below used 'LIBXML2_LIBRARIES' as the name of
# the cache entry storing the find_library result. Use the
# value if it was set by the project or user.
if(DEFINED LIBXML2_LIBRARIES AND NOT DEFINED LIBXML2_LIBRARY)
set(LIBXML2_LIBRARY ${LIBXML2_LIBRARIES})
endif()
find_library(LIBXML2_LIBRARY NAMES xml2 libxml2
HINTS
${PC_LIBXML_LIBDIR}
${PC_LIBXML_LIBRARY_DIRS}
)
find_program(LIBXML2_XMLLINT_EXECUTABLE xmllint)
# for backwards compat. with KDE 4.0.x:
set(XMLLINT_EXECUTABLE "${LIBXML2_XMLLINT_EXECUTABLE}")
if(PC_LIBXML_VERSION)
set(LIBXML2_VERSION_STRING ${PC_LIBXML_VERSION})
elseif(LIBXML2_INCLUDE_DIR AND EXISTS "${LIBXML2_INCLUDE_DIR}/libxml/xmlversion.h")
file(STRINGS "${LIBXML2_INCLUDE_DIR}/libxml/xmlversion.h" libxml2_version_str
REGEX "^#define[\t ]+LIBXML_DOTTED_VERSION[\t ]+\".*\"")
string(REGEX REPLACE "^#define[\t ]+LIBXML_DOTTED_VERSION[\t ]+\"([^\"]*)\".*" "\\1"
LIBXML2_VERSION_STRING "${libxml2_version_str}")
unset(libxml2_version_str)
endif()
set(LIBXML2_INCLUDE_DIRS ${LIBXML2_INCLUDE_DIR} ${PC_LIBXML_INCLUDE_DIRS})
set(LIBXML2_LIBRARIES ${LIBXML2_LIBRARY})
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibXml2
REQUIRED_VARS LIBXML2_LIBRARY LIBXML2_INCLUDE_DIR
VERSION_VAR LIBXML2_VERSION_STRING)
mark_as_advanced(LIBXML2_INCLUDE_DIR LIBXML2_LIBRARY LIBXML2_XMLLINT_EXECUTABLE)
if(LibXml2_FOUND AND NOT TARGET LibXml2::LibXml2)
add_library(LibXml2::LibXml2 UNKNOWN IMPORTED)
set_target_properties(LibXml2::LibXml2 PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${LIBXML2_INCLUDE_DIRS}")
set_property(TARGET LibXml2::LibXml2 APPEND PROPERTY IMPORTED_LOCATION "${LIBXML2_LIBRARY}")
endif()
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