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# Findlibusb.cmake
# Find and install external libusb library
# Once done this will define
#
# LIBUSB_FOUND libusb present on system
# LIBUSB_INCLUDE_DIR the libusb include directory
# LIBUSB_LIBRARY the libraries needed to use libusb
# LIBUSB_DEFINITIONS compiler switches required for using libusb
include(FindPackageHandleStandardArgs)
if (APPLE) # macOS
FIND_PATH(
LIBUSB_INCLUDE_DIR NAMES libusb.h
HINTS /usr /usr/local /opt
PATH_SUFFIXES libusb-1.0
)
set(LIBUSB_NAME libusb-1.0.a)
find_library(
LIBUSB_LIBRARY NAMES ${LIBUSB_NAME}
HINTS /usr /usr/local /opt
)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(libusb DEFAULT_MSG LIBUSB_LIBRARY LIBUSB_INCLUDE_DIR)
mark_as_advanced(LIBUSB_INCLUDE_DIR LIBUSB_LIBRARY)
if (NOT LIBUSB_FOUND)
message(FATAL_ERROR "No libusb library found on your system! Install libusb-1.0 from Homebrew or MacPorts")
endif ()
elseif (CMAKE_SYSTEM_NAME STREQUAL "FreeBSD") # FreeBSD; libusb is integrated into the system
FIND_PATH(
LIBUSB_INCLUDE_DIR NAMES libusb.h
HINTS /usr/include
)
set(LIBUSB_NAME usb)
find_library(
LIBUSB_LIBRARY NAMES ${LIBUSB_NAME}
HINTS /usr /usr/local /opt
)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(libusb DEFAULT_MSG LIBUSB_LIBRARY LIBUSB_INCLUDE_DIR)
mark_as_advanced(LIBUSB_INCLUDE_DIR LIBUSB_LIBRARY)
if (NOT LIBUSB_FOUND)
message(FATAL_ERROR "Expected libusb library not found on your system! Verify your system integrity.")
endif ()
elseif (WIN32 OR (EXISTS "/etc/debian_version" AND MINGW)) # Windows or MinGW-toolchain on Debian
# MinGW/MSYS/MSVC: 64-bit or 32-bit?
if (CMAKE_SIZEOF_VOID_P EQUAL 8)
message(STATUS "=== Building for Windows (x86-64) ===")
set(ARCH 64)
else ()
message(STATUS "=== Building for Windows (i686) ===")
set(ARCH 32)
endif ()
if (WIN32 AND NOT EXISTS "/etc/debian_version") # Skip this for Debian...
FIND_PATH(
LIBUSB_INCLUDE_DIR NAMES libusb.h
HINTS /usr /usr/local /opt
PATH_SUFFIXES libusb-1.0
)
if (MINGW OR MSYS)
set(LIBUSB_NAME usb-1.0)
find_library(
LIBUSB_LIBRARY NAMES ${LIBUSB_NAME}
HINTS ${LIBUSB_WIN_OUTPUT_FOLDER}/MinGW${ARCH}/static
)
else (MSVC)
set(LIBUSB_NAME libusb-1.0.lib)
find_library(
LIBUSB_LIBRARY NAMES ${LIBUSB_NAME}
HINTS ${LIBUSB_WIN_OUTPUT_FOLDER}/MS${ARCH}/dll
)
endif ()
endif ()
if (NOT LIBUSB_FOUND)
# Preparations for installing libusb library
set(LIBUSB_WIN_VERSION 1.0.23) # set libusb version
set(LIBUSB_WIN_ARCHIVE libusb-${LIBUSB_WIN_VERSION}.7z)
if (WIN32 AND NOT EXISTS "/etc/debian_version") # ... on native Windows systems
set(LIBUSB_WIN_ARCHIVE_PATH ${CMAKE_BINARY_DIR}/${LIBUSB_WIN_ARCHIVE})
set(LIBUSB_WIN_OUTPUT_FOLDER ${CMAKE_BINARY_DIR}/3rdparty/libusb-${LIBUSB_WIN_VERSION})
else (EXISTS "/etc/debian_version" AND MINGW) # ... only for cross-building on Debian
set(LIBUSB_WIN_ARCHIVE_PATH ${CMAKE_SOURCE_DIR}/build-mingw-${ARCH}/${LIBUSB_WIN_ARCHIVE})
set(LIBUSB_WIN_OUTPUT_FOLDER ${CMAKE_SOURCE_DIR}/build-mingw-${ARCH}/3rdparty/libusb-${LIBUSB_WIN_VERSION})
endif ()
# Get libusb package
if (EXISTS ${LIBUSB_WIN_ARCHIVE_PATH}) # ... should the package be already there (for whatever reason)
message(STATUS "libusb archive already in build folder")
else () # ... download the package
message(STATUS "downloading libusb ${LIBUSB_WIN_VERSION}")
file(DOWNLOAD
https://sourceforge.net/projects/libusb/files/libusb-1.0/libusb-${LIBUSB_WIN_VERSION}/libusb-${LIBUSB_WIN_VERSION}.7z/download
${LIBUSB_WIN_ARCHIVE_PATH} EXPECTED_MD5 cf3d38d2ff053ef343d10c0b8b0950c2
)
endif ()
file(MAKE_DIRECTORY ${LIBUSB_WIN_OUTPUT_FOLDER})
# Extract libusb package with cmake
execute_process(
COMMAND ${CMAKE_COMMAND} -E tar xv ${LIBUSB_WIN_ARCHIVE_PATH}
WORKING_DIRECTORY ${LIBUSB_WIN_OUTPUT_FOLDER}
)
# Find path to libusb library
FIND_PATH(
LIBUSB_INCLUDE_DIR NAMES libusb.h
HINTS ${LIBUSB_WIN_OUTPUT_FOLDER}/include
PATH_SUFFIXES libusb-1.0
NO_DEFAULT_PATH
NO_CMAKE_FIND_ROOT_PATH
)
if (MINGW OR MSYS)
set(LIBUSB_NAME usb-1.0)
find_library(
LIBUSB_LIBRARY NAMES ${LIBUSB_NAME}
HINTS ${LIBUSB_WIN_OUTPUT_FOLDER}/MinGW${ARCH}/static
NO_DEFAULT_PATH
NO_CMAKE_FIND_ROOT_PATH
)
else (MSVC)
set(LIBUSB_NAME libusb-1.0.lib)
find_library(
LIBUSB_LIBRARY NAMES ${LIBUSB_NAME}
HINTS ${LIBUSB_WIN_OUTPUT_FOLDER}/MS${ARCH}/dll
NO_DEFAULT_PATH
NO_CMAKE_FIND_ROOT_PATH
)
endif ()
message(STATUS "Missing libusb library has been installed")
endif ()
FIND_PACKAGE_HANDLE_STANDARD_ARGS(libusb DEFAULT_MSG LIBUSB_LIBRARY LIBUSB_INCLUDE_DIR)
mark_as_advanced(LIBUSB_INCLUDE_DIR LIBUSB_LIBRARY)
else () # all other OS (unix-based)
FIND_PATH(
LIBUSB_INCLUDE_DIR NAMES libusb.h
HINTS /usr /usr/local /opt
PATH_SUFFIXES libusb-1.0
)
set(LIBUSB_NAME usb-1.0)
find_library(
LIBUSB_LIBRARY NAMES ${LIBUSB_NAME}
HINTS /usr /usr/local /opt
)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(libusb DEFAULT_MSG LIBUSB_LIBRARY LIBUSB_INCLUDE_DIR)
mark_as_advanced(LIBUSB_INCLUDE_DIR LIBUSB_LIBRARY)
if (NOT LIBUSB_FOUND)
message(FATAL_ERROR "libusb library not found on your system! Install libusb 1.0.x from your package repository.")
endif ()
endif ()
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