diff options
Diffstat (limited to 'cmake/FindLibUSB.cmake')
| -rw-r--r-- | cmake/FindLibUSB.cmake | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/cmake/FindLibUSB.cmake b/cmake/FindLibUSB.cmake new file mode 100644 index 000000000..7e3bf156e --- /dev/null +++ b/cmake/FindLibUSB.cmake @@ -0,0 +1,140 @@ +# - Find libusb for portable USB support +# This module will find libusb as published by +# http://libusb.sf.net and +# http://libusb-win32.sf.net +# +# It will use PkgConfig if present and supported, else search +# it on its own. If the LibUSB_ROOT_DIR environment variable +# is defined, it will be used as base path. +# The following standard variables get defined: +# LibUSB_FOUND: true if LibUSB was found +# LibUSB_HEADER_FILE: the location of the C header file +# LibUSB_INCLUDE_DIRS: the directory that contains the include file +# LibUSB_LIBRARIES: the library +# source: https://github.com/IntelRealSense/librealsense + +include ( CheckLibraryExists ) +include ( CheckIncludeFile ) + +find_package ( PkgConfig ) +if ( PKG_CONFIG_FOUND ) + pkg_check_modules ( PKGCONFIG_LIBUSB libusb-1.0 ) + if ( NOT PKGCONFIG_LIBUSB_FOUND ) + pkg_check_modules ( PKGCONFIG_LIBUSB libusb ) + endif ( NOT PKGCONFIG_LIBUSB_FOUND ) +endif ( PKG_CONFIG_FOUND ) + +if ( PKGCONFIG_LIBUSB_FOUND ) + set ( LibUSB_INCLUDE_DIRS ${PKGCONFIG_LIBUSB_INCLUDE_DIRS} ) + foreach ( i ${PKGCONFIG_LIBUSB_LIBRARIES} ) + string ( REGEX MATCH "[^-]*" ibase "${i}" ) + find_library ( ${ibase}_LIBRARY + NAMES ${i} + PATHS ${PKGCONFIG_LIBUSB_LIBRARY_DIRS} + ) + if ( ${ibase}_LIBRARY ) + list ( APPEND LibUSB_LIBRARIES ${${ibase}_LIBRARY} ) + endif ( ${ibase}_LIBRARY ) + mark_as_advanced ( ${ibase}_LIBRARY ) + endforeach ( i ) + +else ( PKGCONFIG_LIBUSB_FOUND ) + find_file ( LibUSB_HEADER_FILE + NAMES + libusb.h usb.h + PATHS + $ENV{ProgramFiles}/LibUSB-Win32 + $ENV{LibUSB_ROOT_DIR} + PATH_SUFFIXES + include + libusb-1.0 + include/libusb-1.0 + ) + mark_as_advanced ( LibUSB_HEADER_FILE ) + get_filename_component ( LibUSB_INCLUDE_DIRS "${LibUSB_HEADER_FILE}" PATH ) + + if ( ${CMAKE_SYSTEM_NAME} STREQUAL "Windows" ) + # LibUSB-Win32 binary distribution contains several libs. + # Use the lib that got compiled with the same compiler. + if ( MSVC ) + if ( WIN32 ) + set ( LibUSB_LIBRARY_PATH_SUFFIX lib/msvc ) + else ( WIN32 ) + set ( LibUSB_LIBRARY_PATH_SUFFIX lib/msvc_x64 ) + endif ( WIN32 ) + elseif ( BORLAND ) + set ( LibUSB_LIBRARY_PATH_SUFFIX lib/bcc ) + elseif ( CMAKE_COMPILER_IS_GNUCC ) + set ( LibUSB_LIBRARY_PATH_SUFFIX lib/gcc ) + endif ( MSVC ) + endif ( ${CMAKE_SYSTEM_NAME} STREQUAL "Windows" ) + + find_library ( usb_LIBRARY + NAMES + usb-1.0 libusb usb + PATHS + $ENV{ProgramFiles}/LibUSB-Win32 + $ENV{LibUSB_ROOT_DIR} + PATH_SUFFIXES + ${LibUSB_LIBRARY_PATH_SUFFIX} + ) + mark_as_advanced ( usb_LIBRARY ) + if ( usb_LIBRARY ) + set ( LibUSB_LIBRARIES ${usb_LIBRARY} ) + endif ( usb_LIBRARY ) + +endif ( PKGCONFIG_LIBUSB_FOUND ) + +if ( LibUSB_INCLUDE_DIRS AND LibUSB_LIBRARIES ) + set ( LibUSB_FOUND true ) +endif ( LibUSB_INCLUDE_DIRS AND LibUSB_LIBRARIES ) + +if ( LibUSB_FOUND ) + set ( CMAKE_REQUIRED_INCLUDES "${LibUSB_INCLUDE_DIRS}" ) + check_include_file ( "${LibUSB_HEADER_FILE}" LibUSB_FOUND ) +endif ( LibUSB_FOUND ) + +if ( LibUSB_FOUND ) + check_library_exists ( "${LibUSB_LIBRARIES}" usb_open "" LibUSB_FOUND ) + check_library_exists ( "${LibUSB_LIBRARIES}" libusb_get_device_list "" LibUSB_VERSION_1.0 ) + check_library_exists ( "${LibUSB_LIBRARIES}" libusb_get_port_numbers "" LibUSB_VERSION_1.0.16 ) + + # Library 1.0.16+ compilation test. + # The check_library_exists does not work well on Apple with shared libs. + if (APPLE OR LibUSB_VERSION_1.0.16) + if (APPLE) + if(DEPENDS) + list(APPEND TEST_COMPILE_EXTRA_LIBRARIES "-framework Foundation -framework IOKit") + else() + find_library(COREFOUNDATION CoreFoundation) + find_library(IOKIT IOKit) + list(APPEND TEST_COMPILE_EXTRA_LIBRARIES ${IOKIT}) + list(APPEND TEST_COMPILE_EXTRA_LIBRARIES ${COREFOUNDATION}) + endif() + endif() + if (WIN32) + list(APPEND TEST_COMPILE_EXTRA_LIBRARIES setupapi) + endif() + list(APPEND TEST_COMPILE_EXTRA_LIBRARIES ${LibUSB_LIBRARIES}) + + try_compile(LibUSB_COMPILE_TEST_PASSED + ${CMAKE_BINARY_DIR} + "${CMAKE_SOURCE_DIR}/cmake/test-libusb-version.c" + CMAKE_FLAGS + "-DINCLUDE_DIRECTORIES=${LibUSB_INCLUDE_DIRS}" + "-DLINK_DIRECTORIES=${LibUSB_LIBRARIES}" + LINK_LIBRARIES ${TEST_COMPILE_EXTRA_LIBRARIES} + OUTPUT_VARIABLE OUTPUT) + unset(TEST_COMPILE_EXTRA_LIBRARIES) + message(STATUS "LibUSB Compilation test: ${LibUSB_COMPILE_TEST_PASSED}") + endif() +endif ( LibUSB_FOUND ) + +if ( NOT LibUSB_FOUND ) + if ( NOT LibUSB_FIND_QUIETLY ) + message ( STATUS "LibUSB not found, try setting LibUSB_ROOT_DIR environment variable." ) + endif ( NOT LibUSB_FIND_QUIETLY ) + if ( LibUSB_FIND_REQUIRED ) + message ( FATAL_ERROR "" ) + endif ( LibUSB_FIND_REQUIRED ) +endif ( NOT LibUSB_FOUND ) |