set(LIBUSB_FOUND ON CACHE BOOL "libusb is present" FORCE) set(LIBUSB_VERSION "1.0.24" CACHE STRING "libusb version string" FORCE) if (MINGW OR (${CMAKE_SYSTEM_NAME} MATCHES "Linux")) # GNU toolchains for some reason doesn't work with the later half of this CMakeLists after # updating to 1.0.24, so we do it the old-fashioned way for now. set(LIBUSB_PREFIX "${CMAKE_CURRENT_BINARY_DIR}/libusb") set(LIBUSB_SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/libusb") # Workarounds for MSYS/MinGW if (MSYS) # CMake on Windows passes `C:/`, but we need `/C/` or `/c/` to use `configure` string(REPLACE ":/" "/" LIBUSB_SRC_DIR "${LIBUSB_SRC_DIR}") set(LIBUSB_SRC_DIR "/${LIBUSB_SRC_DIR}") # And now that we are using /C/ for srcdir but everything else is using C:/, we need to # compile everything in the source directory, else `configure` won't think the build # environment is sane. set(LIBUSB_PREFIX "${LIBUSB_SRC_DIR}") endif() set(LIBUSB_CONFIGURE "${LIBUSB_SRC_DIR}/configure") set(LIBUSB_MAKEFILE "${LIBUSB_PREFIX}/Makefile") if (MINGW) set(LIBUSB_LIBRARIES "${LIBUSB_PREFIX}/libusb/.libs/libusb-1.0.dll.a" CACHE PATH "libusb library path" FORCE) set(LIBUSB_SHARED_LIBRARY "${LIBUSB_PREFIX}/libusb/.libs/libusb-1.0.dll") set(LIBUSB_SHARED_LIBRARY_DEST "${CMAKE_BINARY_DIR}/bin/libusb-1.0.dll") set(LIBUSB_CONFIGURE_ARGS --host=x86_64-w64-mingw32 --build=x86_64-windows) else() set(LIBUSB_LIBRARIES "${LIBUSB_PREFIX}/libusb/.libs/libusb-1.0.a" CACHE PATH "libusb library path" FORCE) endif() set(LIBUSB_INCLUDE_DIRS "${LIBUSB_SRC_DIR}/libusb" CACHE PATH "libusb headers path" FORCE) # MINGW: causes "externals/libusb/libusb/libusb/os/windows_winusb.c:1427:2: error: conversion to non-scalar type requested", so cannot statically link it for now. if (NOT MINGW) set(LIBUSB_CFLAGS "-DGUID_DEVINTERFACE_USB_DEVICE=\\(GUID\\){0xA5DCBF10,0x6530,0x11D2,{0x90,0x1F,0x00,0xC0,0x4F,0xB9,0x51,0xED}}") endif() make_directory("${LIBUSB_PREFIX}") add_custom_command( OUTPUT "${LIBUSB_LIBRARIES}" COMMAND make WORKING_DIRECTORY "${LIBUSB_PREFIX}" ) add_custom_command( OUTPUT "${LIBUSB_MAKEFILE}" COMMAND env CFLAGS="${LIBUSB_CFLAGS}" sh "${LIBUSB_CONFIGURE}" ${LIBUSB_CONFIGURE_ARGS} --srcdir="${LIBUSB_SRC_DIR}" WORKING_DIRECTORY "${LIBUSB_PREFIX}" ) add_custom_command( OUTPUT "${LIBUSB_CONFIGURE}" COMMAND sh "${LIBUSB_SRC_DIR}/bootstrap.sh" WORKING_DIRECTORY "${LIBUSB_SRC_DIR}" ) add_custom_command( OUTPUT "${LIBUSB_SHARED_LIBRARY_DEST}" COMMAND cp "${LIBUSB_SHARED_LIBRARY}" "${LIBUSB_SHARED_LIBRARY_DEST}" ) add_custom_target(usb-bootstrap DEPENDS "${LIBUSB_CONFIGURE}") add_custom_target(usb-configure DEPENDS "${LIBUSB_MAKEFILE}" usb-bootstrap) add_custom_target(usb-build ALL DEPENDS "${LIBUSB_LIBRARIES}" usb-configure) # Workaround since static linking didn't work out -- We need to copy the DLL to the bin directory add_custom_target(usb-copy ALL DEPENDS "${LIBUSB_SHARED_LIBRARY_DEST}" usb-build) add_library(usb INTERFACE) add_dependencies(usb usb-copy) target_link_libraries(usb INTERFACE "${LIBUSB_LIBRARIES}") target_include_directories(usb INTERFACE "${LIBUSB_INCLUDE_DIRS}") if (${CMAKE_SYSTEM_NAME} MATCHES "Linux") Include(FindPkgConfig) pkg_check_modules(LIBUDEV REQUIRED libudev) if (LIBUDEV_FOUND) target_include_directories(usb INTERFACE "${LIBUDEV_INCLUDE_DIRS}") target_link_libraries(usb INTERFACE "${LIBUDEV_STATIC_LIBRARIES}") endif() endif() else() # MINGW OR (${CMAKE_SYSTEM_NAME} MATCHES "Linux") # Ensure libusb compiles with UTF-8 encoding on MSVC if(MSVC) add_compile_options(/utf-8) endif() add_library(usb STATIC EXCLUDE_FROM_ALL libusb/libusb/core.c libusb/libusb/core.c libusb/libusb/descriptor.c libusb/libusb/hotplug.c libusb/libusb/io.c libusb/libusb/strerror.c libusb/libusb/sync.c ) set_target_properties(usb PROPERTIES VERSION 1.0.24) if(WIN32) target_include_directories(usb BEFORE PUBLIC libusb/libusb PRIVATE "${CMAKE_CURRENT_BINARY_DIR}" ) if (NOT MINGW) target_include_directories(usb BEFORE PRIVATE libusb/msvc) endif() # Works around other libraries providing their own definition of USB GUIDs (e.g. SDL2) target_compile_definitions(usb PRIVATE "-DGUID_DEVINTERFACE_USB_DEVICE=(GUID){ 0xA5DCBF10, 0x6530, 0x11D2, {0x90, 0x1F, 0x00, 0xC0, 0x4F, 0xB9, 0x51, 0xED}}") else() target_include_directories(usb # turns out other projects also have "config.h", so make sure the # LibUSB one comes first BEFORE PUBLIC libusb/libusb PRIVATE "${CMAKE_CURRENT_BINARY_DIR}" ) endif() if(WIN32 OR CYGWIN) target_sources(usb PRIVATE libusb/libusb/os/threads_windows.c libusb/libusb/os/windows_winusb.c libusb/libusb/os/windows_usbdk.c libusb/libusb/os/windows_common.c ) set(OS_WINDOWS TRUE) elseif(APPLE) target_sources(usb PRIVATE libusb/libusb/os/darwin_usb.c ) find_library(COREFOUNDATION_LIBRARY CoreFoundation) find_library(IOKIT_LIBRARY IOKit) find_library(OBJC_LIBRARY objc) target_link_libraries(usb PRIVATE ${COREFOUNDATION_LIBRARY} ${IOKIT_LIBRARY} ${OBJC_LIBRARY} ) set(OS_DARWIN TRUE) elseif(ANDROID) target_sources(usb PRIVATE libusb/libusb/os/linux_usbfs.c libusb/libusb/os/linux_netlink.c ) find_library(LOG_LIBRARY log) target_link_libraries(usb PRIVATE ${LOG_LIBRARY}) set(OS_LINUX TRUE) elseif(${CMAKE_SYSTEM_NAME} MATCHES "Linux") target_sources(usb PRIVATE libusb/libusb/os/linux_usbfs.c ) find_package(Libudev) if(LIBUDEV_FOUND) target_sources(usb PRIVATE libusb/libusb/os/linux_udev.c ) target_link_libraries(usb PRIVATE "${LIBUDEV_LIBRARIES}") target_include_directories(usb PRIVATE "${LIBUDEV_INCLUDE_DIR}") set(HAVE_LIBUDEV TRUE) set(USE_UDEV TRUE) else() target_sources(usb PRIVATE libusb/libusb/os/linux_netlink.c ) endif() set(OS_LINUX TRUE) elseif(${CMAKE_SYSTEM_NAME} MATCHES "NetBSD") target_sources(usb PRIVATE libusb/libusb/os/netbsd_usb.c ) set(OS_NETBSD TRUE) elseif(${CMAKE_SYSTEM_NAME} MATCHES "OpenBSD") target_sources(usb PRIVATE libusb/libusb/os/openbsd_usb.c ) set(OS_OPENBSD TRUE) endif() if(UNIX) target_sources(usb PRIVATE libusb/libusb/os/events_posix.c libusb/libusb/os/threads_posix.c ) find_package(Threads REQUIRED) if(THREADS_HAVE_PTHREAD_ARG) target_compile_options(usb PUBLIC "-pthread") endif() if(CMAKE_THREAD_LIBS_INIT) target_link_libraries(usb PRIVATE "${CMAKE_THREAD_LIBS_INIT}") endif() set(THREADS_POSIX TRUE) elseif(WIN32) target_sources(usb PRIVATE libusb/libusb/os/events_windows.c libusb/libusb/os/threads_windows.c ) endif() include(CheckFunctionExists) include(CheckIncludeFiles) include(CheckTypeSize) check_include_files(asm/types.h HAVE_ASM_TYPES_H) check_function_exists(gettimeofday HAVE_GETTIMEOFDAY) check_include_files(linux/filter.h HAVE_LINUX_FILTER_H) check_include_files(linux/netlink.h HAVE_LINUX_NETLINK_H) check_include_files(poll.h HAVE_POLL_H) check_include_files(signal.h HAVE_SIGNAL_H) check_include_files(strings.h HAVE_STRINGS_H) check_type_size("struct timespec" STRUCT_TIMESPEC) check_function_exists(syslog HAVE_SYSLOG_FUNC) check_include_files(syslog.h HAVE_SYSLOG_H) check_include_files(sys/socket.h HAVE_SYS_SOCKET_H) check_include_files(sys/time.h HAVE_SYS_TIME_H) check_include_files(sys/types.h HAVE_SYS_TYPES_H) set(CMAKE_EXTRA_INCLUDE_FILES poll.h) check_type_size("nfds_t" nfds_t) unset(CMAKE_EXTRA_INCLUDE_FILES) if(HAVE_NFDS_T) set(POLL_NFDS_TYPE "nfds_t") else() set(POLL_NFDS_TYPE "unsigned int") endif() check_include_files(sys/timerfd.h USBI_TIMERFD_AVAILABLE) configure_file(config.h.in config.h) endif() # MINGW OR (${CMAKE_SYSTEM_NAME} MATCHES "Linux")