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3p3r/FindPackage.cmake

Created July 19, 2017 18:41
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  1. Sepehr Laal created this gist Jul 19, 2017.
    78 changes: 78 additions & 0 deletions FindPackage.cmake
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    # Copyright (c) 2017 sepehr laal (MIT License)
    #
    # Permission is hereby granted, free of charge, to any person obtaining a copy
    # of this software and associated documentation files (the "Software"), to deal
    # in the Software without restriction, including without limitation the rights
    # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    # copies of the Software, and to permit persons to whom the Software is
    # furnished to do so, subject to the following conditions:
    #
    # The above copyright notice and this permission notice shall be included in all
    # copies or substantial portions of the Software.
    #
    # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    # SOFTWARE.
    ##______________________________________________________________________________
    ##
    # This is a general purpose header-only library cmake finder. To use it, modify
    # variables in the "Configuration" section below (variables starting with '_').
    #
    # Caveats: it does not support version / components.
    #
    # The following variables are set when found:
    # <Package Name>_FOUND
    # <Package Name>_INCLUDES
    # <Package Name>_INCLUDE_DIR (same as <Package Name>_INCLUDES for convenience)
    # <Package Name>_INCLUDE_DIRS (same as <Package Name>_INCLUDES for convenience)

    ##______________________________________________________________________________
    ## Configuration

    set ( _package_name "RapidJson" )
    set ( _package_header_candidates "rapidjson/rapidjson.h" )
    set ( _package_suffix_candidates "include" )

    ##______________________________________________________________________________
    ## Check for the header files

    # Force it to show up in the GUI
    set ( ${_package_name}_ROOT "" CACHE PATH "${_package_name} root directory." )

    find_path ( ${_package_name}_INCLUDES
    NAMES "${_package_header_candidates}"
    HINTS ${${_package_name}_ROOT} ${CMAKE_INSTALL_PREFIX}
    PATH_SUFFIXES "${_package_suffix_candidates}"
    )

    ##______________________________________________________________________________
    ## Actions taken when all components have been found

    include( FindPackageHandleStandardArgs )
    find_package_handle_standard_args (
    ${_package_name}
    FOUND_VAR ${_package_name}_FOUND
    REQUIRED_VARS ${_package_name}_INCLUDES
    )
    # Force it to show up in the GUI
    set( ${_package_name}_FOUND ${${_package_name}_FOUND}
    CACHE BOOL "${_package_name} found?" )

    ##______________________________________________________________________________
    ## Mark advanced variables

    set( ${_package_name}_INCLUDE_DIR
    "${${_package_name}_INCLUDES}" CACHE INTERNAL "" FORCE )

    set( ${_package_name}_INCLUDE_DIRS
    "${${_package_name}_INCLUDES}" CACHE INTERNAL "" FORCE )

    mark_as_advanced (
    ${_package_name}_ROOT
    ${_package_name}_FOUND
    ${_package_name}_INCLUDES
    )