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#[=======================================================================[.rst:
FindJsonCpp
-----------
Find JsonCpp includes and library.
Imported Targets
^^^^^^^^^^^^^^^^
An :ref:`imported target <Imported targets>` named
``JsonCpp::JsonCpp`` is provided if JsonCpp has been found.
Result Variables
^^^^^^^^^^^^^^^^
This module defines the following variables:
``JsonCpp_FOUND``
True if JsonCpp was found, false otherwise.
``JsonCpp_INCLUDE_DIRS``
Include directories needed to include JsonCpp headers.
``JsonCpp_LIBRARIES``
Libraries needed to link to JsonCpp.
``JsonCpp_VERSION_STRING``
The version of JsonCpp found.
May not be set for JsonCpp versions prior to 1.0.
``JsonCpp_VERSION_MAJOR``
The major version of JsonCpp.
``JsonCpp_VERSION_MINOR``
The minor version of JsonCpp.
``JsonCpp_VERSION_PATCH``
The patch version of JsonCpp.
Cache Variables
^^^^^^^^^^^^^^^
This module uses the following cache variables:
``JsonCpp_LIBRARY``
The location of the JsonCpp library file.
``JsonCpp_INCLUDE_DIR``
The location of the JsonCpp include directory containing ``json/json.h``.
The cache variables should not be used by project code.
They may be set by end users to point at JsonCpp components.
#]=======================================================================]
#=============================================================================
# Copyright 2014-2015 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
#-----------------------------------------------------------------------------
find_library(JsonCpp_LIBRARY
NAMES jsoncpp
)
mark_as_advanced(JsonCpp_LIBRARY)
find_path(JsonCpp_INCLUDE_DIR
NAMES json/json.h
PATH_SUFFIXES jsoncpp
)
mark_as_advanced(JsonCpp_INCLUDE_DIR)
#-----------------------------------------------------------------------------
# Extract version number if possible.
set(_JsonCpp_H_REGEX "^#[ \t]*define[ \t]+JSONCPP_VERSION_STRING[ \t]+\"(([0-9]+)\\.([0-9]+)\\.([0-9]+)[^\"]*)\".*$")
if(JsonCpp_INCLUDE_DIR AND EXISTS "${JsonCpp_INCLUDE_DIR}/json/version.h")
file(STRINGS "${JsonCpp_INCLUDE_DIR}/json/version.h" _JsonCpp_H REGEX "${_JsonCpp_H_REGEX}")
else()
set(_JsonCpp_H "")
endif()
if(_JsonCpp_H MATCHES "${_JsonCpp_H_REGEX}")
set(JsonCpp_VERSION_STRING "${CMAKE_MATCH_1}")
set(JsonCpp_VERSION_MAJOR "${CMAKE_MATCH_2}")
set(JsonCpp_VERSION_MINOR "${CMAKE_MATCH_3}")
set(JsonCpp_VERSION_PATCH "${CMAKE_MATCH_4}")
else()
set(JsonCpp_VERSION_STRING "")
set(JsonCpp_VERSION_MAJOR "")
set(JsonCpp_VERSION_MINOR "")
set(JsonCpp_VERSION_PATCH "")
endif()
unset(_JsonCpp_H_REGEX)
unset(_JsonCpp_H)
#-----------------------------------------------------------------------------
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(JsonCpp
FOUND_VAR JsonCpp_FOUND
REQUIRED_VARS JsonCpp_LIBRARY JsonCpp_INCLUDE_DIR
VERSION_VAR JsonCpp_VERSION_STRING
)
set(JSONCPP_FOUND ${JsonCpp_FOUND})
#-----------------------------------------------------------------------------
# Provide documented result variables and targets.
if(JsonCpp_FOUND)
set(JsonCpp_INCLUDE_DIRS ${JsonCpp_INCLUDE_DIR})
set(JsonCpp_LIBRARIES ${JsonCpp_LIBRARY})
if(NOT TARGET JsonCpp::JsonCpp)
add_library(JsonCpp::JsonCpp UNKNOWN IMPORTED)
set_target_properties(JsonCpp::JsonCpp PROPERTIES
IMPORTED_LOCATION "${JsonCpp_LIBRARY}"
INTERFACE_INCLUDE_DIRECTORIES "${JsonCpp_INCLUDE_DIRS}"
IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
)
endif()
endif()
|
