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141 lines
5.2 KiB
CMake
141 lines
5.2 KiB
CMake
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# - Find libusb for portable USB support
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# This module will find libusb as published by
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# http://libusb.sf.net and
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# http://libusb-win32.sf.net
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#
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# It will use PkgConfig if present and supported, else search
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# it on its own. If the LibUSB_ROOT_DIR environment variable
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# is defined, it will be used as base path.
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# The following standard variables get defined:
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# LibUSB_FOUND: true if LibUSB was found
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# LibUSB_HEADER_FILE: the location of the C header file
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# LibUSB_INCLUDE_DIRS: the directory that contains the include file
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# LibUSB_LIBRARIES: the library
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# source: https://github.com/IntelRealSense/librealsense
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include ( CheckLibraryExists )
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include ( CheckIncludeFile )
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find_package ( PkgConfig )
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if ( PKG_CONFIG_FOUND )
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pkg_check_modules ( PKGCONFIG_LIBUSB libusb-1.0 )
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if ( NOT PKGCONFIG_LIBUSB_FOUND )
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pkg_check_modules ( PKGCONFIG_LIBUSB libusb )
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endif ( NOT PKGCONFIG_LIBUSB_FOUND )
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endif ( PKG_CONFIG_FOUND )
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if ( PKGCONFIG_LIBUSB_FOUND )
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set ( LibUSB_INCLUDE_DIRS ${PKGCONFIG_LIBUSB_INCLUDE_DIRS} )
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foreach ( i ${PKGCONFIG_LIBUSB_LIBRARIES} )
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string ( REGEX MATCH "[^-]*" ibase "${i}" )
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find_library ( ${ibase}_LIBRARY
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NAMES ${i}
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PATHS ${PKGCONFIG_LIBUSB_LIBRARY_DIRS}
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)
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if ( ${ibase}_LIBRARY )
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list ( APPEND LibUSB_LIBRARIES ${${ibase}_LIBRARY} )
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endif ( ${ibase}_LIBRARY )
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mark_as_advanced ( ${ibase}_LIBRARY )
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endforeach ( i )
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else ( PKGCONFIG_LIBUSB_FOUND )
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find_file ( LibUSB_HEADER_FILE
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NAMES
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libusb.h usb.h
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PATHS
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$ENV{ProgramFiles}/LibUSB-Win32
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$ENV{LibUSB_ROOT_DIR}
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PATH_SUFFIXES
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include
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libusb-1.0
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include/libusb-1.0
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)
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mark_as_advanced ( LibUSB_HEADER_FILE )
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get_filename_component ( LibUSB_INCLUDE_DIRS "${LibUSB_HEADER_FILE}" PATH )
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if ( ${CMAKE_SYSTEM_NAME} STREQUAL "Windows" )
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# LibUSB-Win32 binary distribution contains several libs.
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# Use the lib that got compiled with the same compiler.
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if ( MSVC )
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if ( WIN32 )
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set ( LibUSB_LIBRARY_PATH_SUFFIX lib/msvc )
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else ( WIN32 )
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set ( LibUSB_LIBRARY_PATH_SUFFIX lib/msvc_x64 )
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endif ( WIN32 )
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elseif ( BORLAND )
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set ( LibUSB_LIBRARY_PATH_SUFFIX lib/bcc )
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elseif ( CMAKE_COMPILER_IS_GNUCC )
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set ( LibUSB_LIBRARY_PATH_SUFFIX lib/gcc )
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endif ( MSVC )
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endif ( ${CMAKE_SYSTEM_NAME} STREQUAL "Windows" )
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find_library ( usb_LIBRARY
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NAMES
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usb-1.0 libusb usb
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PATHS
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$ENV{ProgramFiles}/LibUSB-Win32
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$ENV{LibUSB_ROOT_DIR}
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PATH_SUFFIXES
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${LibUSB_LIBRARY_PATH_SUFFIX}
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)
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mark_as_advanced ( usb_LIBRARY )
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if ( usb_LIBRARY )
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set ( LibUSB_LIBRARIES ${usb_LIBRARY} )
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endif ( usb_LIBRARY )
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endif ( PKGCONFIG_LIBUSB_FOUND )
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if ( LibUSB_INCLUDE_DIRS AND LibUSB_LIBRARIES )
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set ( LibUSB_FOUND true )
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endif ( LibUSB_INCLUDE_DIRS AND LibUSB_LIBRARIES )
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if ( LibUSB_FOUND )
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set ( CMAKE_REQUIRED_INCLUDES "${LibUSB_INCLUDE_DIRS}" )
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check_include_file ( "${LibUSB_HEADER_FILE}" LibUSB_FOUND )
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endif ( LibUSB_FOUND )
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if ( LibUSB_FOUND )
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check_library_exists ( "${LibUSB_LIBRARIES}" usb_open "" LibUSB_FOUND )
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check_library_exists ( "${LibUSB_LIBRARIES}" libusb_get_device_list "" LibUSB_VERSION_1.0 )
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check_library_exists ( "${LibUSB_LIBRARIES}" libusb_get_port_numbers "" LibUSB_VERSION_1.0.16 )
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# Library 1.0.16+ compilation test.
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# The check_library_exists does not work well on Apple with shared libs.
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if (APPLE OR LibUSB_VERSION_1.0.16)
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if (APPLE)
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if(DEPENDS)
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list(APPEND TEST_COMPILE_EXTRA_LIBRARIES "-framework Foundation -framework IOKit")
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else()
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find_library(COREFOUNDATION CoreFoundation)
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find_library(IOKIT IOKit)
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list(APPEND TEST_COMPILE_EXTRA_LIBRARIES ${IOKIT})
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list(APPEND TEST_COMPILE_EXTRA_LIBRARIES ${COREFOUNDATION})
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endif()
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endif()
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if (WIN32)
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list(APPEND TEST_COMPILE_EXTRA_LIBRARIES setupapi)
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endif()
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list(APPEND TEST_COMPILE_EXTRA_LIBRARIES ${LibUSB_LIBRARIES})
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try_compile(LibUSB_COMPILE_TEST_PASSED
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${CMAKE_BINARY_DIR}
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"${CMAKE_SOURCE_DIR}/cmake/test-libusb-version.c"
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CMAKE_FLAGS
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"-DINCLUDE_DIRECTORIES=${LibUSB_INCLUDE_DIRS}"
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"-DLINK_DIRECTORIES=${LibUSB_LIBRARIES}"
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LINK_LIBRARIES ${TEST_COMPILE_EXTRA_LIBRARIES}
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OUTPUT_VARIABLE OUTPUT)
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unset(TEST_COMPILE_EXTRA_LIBRARIES)
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message(STATUS "LibUSB Compilation test: ${LibUSB_COMPILE_TEST_PASSED}")
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endif()
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endif ( LibUSB_FOUND )
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if ( NOT LibUSB_FOUND )
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if ( NOT LibUSB_FIND_QUIETLY )
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message ( STATUS "LibUSB not found, try setting LibUSB_ROOT_DIR environment variable." )
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endif ( NOT LibUSB_FIND_QUIETLY )
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if ( LibUSB_FIND_REQUIRED )
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message ( FATAL_ERROR "" )
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endif ( LibUSB_FIND_REQUIRED )
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endif ( NOT LibUSB_FOUND )
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