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# This file is part of Mixxx, Digital DJ'ing software.
# Copyright (C) 2001-2023 Mixxx Development Team
# Distributed under the GNU General Public Licence (GPL) version 2 or any later
# later version. See the LICENSE file for details.
#[=======================================================================[.rst:
FindLibUSB
----------
Finds the LibUSB library.
Imported Targets
^^^^^^^^^^^^^^^^
This module provides the following imported targets, if found:
``LibUSB::LibUSB``
The LibUSB library
Result Variables
^^^^^^^^^^^^^^^^
This will define the following variables:
``LibUSB_FOUND``
True if the system has the LibUSB library.
``LibUSB_INCLUDE_DIRS``
Include directories needed to use LibUSB.
``LibUSB_LIBRARIES``
Libraries needed to link to LibUSB.
``LibUSB_DEFINITIONS``
Compile definitions needed to use LibUSB.
Cache Variables
^^^^^^^^^^^^^^^
The following cache variables may also be set:
``LibUSB_INCLUDE_DIR``
The directory containing ``libusb-1.0/libusb.h``.
``LibUSB_LIBRARY``
The path to the LibUSB library.
#]=======================================================================]
find_package(PkgConfig QUIET)
if(PkgConfig_FOUND)
pkg_check_modules(PC_LibUSB QUIET libusb-1.0)
endif()
find_path(LibUSB_INCLUDE_DIR
NAMES libusb.h
PATH_SUFFIXES libusb libusb-1.0
PATHS ${PC_LibUSB_INCLUDE_DIRS}
DOC "LibUSB include directory"
)
mark_as_advanced(LibUSB_INCLUDE_DIR)
find_library(LibUSB_LIBRARY
NAMES usb-1.0 usb
PATHS ${PC_LibUSB_LIBRARY_DIRS}
DOC "LibUSB library"
)
mark_as_advanced(LibUSB_LIBRARY)
if(DEFINED PC_LibUSB_VERSION AND NOT PC_LibUSB_VERSION STREQUAL "")
set(LibUSB_VERSION "${PC_LibUSB_VERSION}")
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(
LibUSB
REQUIRED_VARS LibUSB_LIBRARY LibUSB_INCLUDE_DIR
VERSION_VAR LibUSB_VERSION
)
if(LibUSB_FOUND)
set(LibUSB_LIBRARIES "${LibUSB_LIBRARY}")
set(LibUSB_INCLUDE_DIRS "${LibUSB_INCLUDE_DIR}")
set(LibUSB_DEFINITIONS ${PC_LibUSB_CFLAGS_OTHER})
if(NOT TARGET LibUSB::LibUSB)
add_library(LibUSB::LibUSB UNKNOWN IMPORTED)
set_target_properties(LibUSB::LibUSB
PROPERTIES
IMPORTED_LOCATION "${LibUSB_LIBRARY}"
INTERFACE_COMPILE_OPTIONS "${PC_LibUSB_CFLAGS_OTHER}"
INTERFACE_INCLUDE_DIRECTORIES "${LibUSB_INCLUDE_DIR}"
)
endif()
endif()
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