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# - Try to find the libusb library
# Once done this defines
#
# LIBUSB_FOUND - system has libusb
# LIBUSB_INCLUDE_DIR - the libusb include directory
# LIBUSB_LIBRARIES - Link these to use libusb
# Copyright (c) 2006, 2008 Laurent Montel, <montel@kde.org>
#
# Redistribution and use is allowed according to the terms of the BSD license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
# Set LIBUSB_ROOT if specified
if (LIBUSB_ROOT)
set(ENV{LIBUSB_ROOT} ${LIBUSB_ROOT})
endif()
if (LIBUSB_INCLUDE_DIR AND LIBUSB_LIBRARIES)
# in cache already
set(LIBUSB_FOUND TRUE)
else (LIBUSB_INCLUDE_DIR AND LIBUSB_LIBRARIES)
# use pkg-config to get the directories and then use these values
# in the find_path() and find_library() calls. Might fail, pkg-config
# might not be installed, e.g. for Windows systems
find_package(PkgConfig)
if (PKG_CONFIG_FOUND)
pkg_check_modules(PC_LIBUSB libusb-1.0)
endif()
if (NOT PC_LIBUSB_FOUND)
# As the pkg-config was not found we are probably building under windows.
# Determine the architecture of the host, to choose right library
if (NOT DEFINED ARCHITECTURE)
if (CMAKE_SIZEOF_VOID_P GREATER 4)
set(ARCHITECTURE 64)
else()
set(ARCHITECTURE 32)
endif()
endif()
set(PC_LIBUSB_INCLUDEDIR_HINT $ENV{LIBUSB_ROOT}/include)
if (MINGW OR CYGWIN)
set(PC_LIBUSB_LIBDIR_HINT $ENV{LIBUSB_ROOT}/MinGW${ARCHITECTURE}/static)
elseif(MSVC)
set(PC_LIBUSB_LIBDIR_HINT $ENV{LIBUSB_ROOT}/VS2019/MS${ARCHITECTURE}/static)
endif ()
endif ()
find_path(LIBUSB_INCLUDE_DIR libusb.h
HINTS ${PC_LIBUSB_INCLUDEDIR_HINT}
PATHS ${PC_LIBUSB_INCLUDEDIR} ${PC_LIBUSB_INCLUDE_DIRS}
PATH_SUFFIXES libusb-1.0)
find_library(LIBUSB_LIBRARIES NAMES libusb-1.0 usb-1.0 usb
HINTS ${PC_LIBUSB_LIBDIR_HINT}
PATHS ${PC_LIBUSB_LIBDIR} ${PC_LIBUSB_LIBRARY_DIRS})
include(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(LIBUSB DEFAULT_MSG LIBUSB_LIBRARIES LIBUSB_INCLUDE_DIR)
# Don't use .dll.a libraries, as they require the .dll file to be in the correct location
# Replace with .a for static linking instead
string(REPLACE ".dll.a" ".a" LIBUSB_LIBRARIES ${LIBUSB_LIBRARIES})
MARK_AS_ADVANCED(LIBUSB_INCLUDE_DIR LIBUSB_LIBRARIES)
endif (LIBUSB_INCLUDE_DIR AND LIBUSB_LIBRARIES)
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