# - try to find libusb-1 library
#
# Cache Variables: (probably not for direct use in your scripts)
#  LIBUSB1_LIBRARY
#  LIBUSB1_INCLUDE_DIR
#
# Non-cache variables you should use in your CMakeLists.txt:
#  LIBUSB1_LIBRARIES
#  LIBUSB1_INCLUDE_DIRS
#  LIBUSB1_FOUND - if this is not true, do not attempt to use this library
#
# Requires these CMake modules:
#  ProgramFilesGlob
#  FindPackageHandleStandardArgs (known included with CMake >=2.6.2)
#
# Original Author:
# 2009-2010 Ryan Pavlik <rpavlik@iastate.edu> <abiryan@ryand.net>
# http://academic.cleardefinition.com
# Iowa State University HCI Graduate Program/VRAC
#
# Copyright Iowa State University 2009-2010.
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)


set(LIBUSB1_ROOT_DIR
        "${LIBUSB1_ROOT_DIR}"
        CACHE
        PATH
        "Root directory to search for libusb-1")

if(WIN32)
    include(ProgramFilesGlob)
    program_files_fallback_glob(_dirs "LibUSB-Win32")
    if(CMAKE_SIZEOF_VOID_P EQUAL 8)
        if(MSVC)
            set(_lib_suffixes lib/msvc_x64)
        endif()
    else()
        if(MSVC)
            set(_lib_suffixes lib/msvc)
        elseif(COMPILER_IS_GNUCXX)
            set(_lib_suffixes lib/gcc)
        endif()
    endif()
else()
    set(_lib_suffixes)
    find_package(PkgConfig QUIET)
    if(PKG_CONFIG_FOUND)
        pkg_check_modules(PC_LIBUSB1 libusb-1.0)
    endif()
endif()

find_path(LIBUSB1_INCLUDE_DIR
        NAMES
        libusb.h
        PATHS
        ${PC_LIBUSB1_INCLUDE_DIRS}
        ${PC_LIBUSB1_INCLUDEDIR}
        ${_dirs}
        HINTS
        "${LIBUSB1_ROOT_DIR}"
        PATH_SUFFIXES
        include)

find_library(LIBUSB1_LIBRARY
        NAMES
        usb-1.0
        PATHS
        ${PC_LIBUSB1_LIBRARY_DIRS}
        ${PC_LIBUSB1_LIBDIR}
        ${_dirs}
        PATH_SUFFIXES
        ${_lib_suffixes})

include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Libusb1
        DEFAULT_MSG
        LIBUSB1_LIBRARY
        LIBUSB1_INCLUDE_DIR)

if(LIBUSB1_FOUND)
    set(LIBUSB1_LIBRARIES "${LIBUSB1_LIBRARY}")

    set(LIBUSB1_INCLUDE_DIRS "${LIBUSB1_INCLUDE_DIR}")

    mark_as_advanced(LIBUSB1_ROOT_DIR)
endif()

mark_as_advanced(LIBUSB1_INCLUDE_DIR LIBUSB1_LIBRARY)