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# - try to find libusb-1 library
#
# Cache Variables: (probably not for direct use in your scripts)
# LIBUSB_LIBRARY
# LIBUSB_INCLUDE_DIR
#
# Non-cache variables you should use in your CMakeLists.txt:
# LIBUSB_LIBRARIES
# LIBUSB_INCLUDE_DIRS
# LIBUSB_FOUND - if this is not true, do not attempt to use this library
# LIBUSB_VERSION
#
# Requires these CMake modules:
# ProgramFilesGlob
# FindPackageHandleStandardArgs (known included with CMake >=2.6.2)
#
# Original Author:
# 2009-2010 Ryan Pavlik <rpavlik@iastate.edu> <abiryan@ryand.net>
# http://academic.cleardefinition.com
# Iowa State University HCI Graduate Program/VRAC
#
# Copyright Iowa State University 2009-2010.
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)
set(LIBUSB_ROOT_DIR
"${LIBUSB_ROOT_DIR}"
CACHE
PATH
"Root directory to search for libusb-1")
if(WIN32)
include(ProgramFilesGlob)
# program_files_fallback_glob(_dirs "LibUSB-Win32")
program_files_fallback_glob(_dirs "libusb-1.*")
message(STATUS "Found libusb in directory: ${_dirs}" )
# program_files_fallback_glob(_dirs "libusb-win32")
# message(STATUS "Found libusb in directory: ${_dirs}" )
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
if(MSVC)
set(_lib_suffixes lib/msvc_x64 MS64/static)
else()
set(_lib_suffixes lib/mingw_x64 MinGW64/dll MinGW64/static lib64)
endif()
else()
if(MSVC)
set(_lib_suffixes lib/msvc MS32/static)
else() #(COMPILER_IS_GNUCXX)
set(_lib_suffixes lib/gcc lib/mingw MinGW32/dll MinGW32/static lib32)
endif()
endif()
else()
set(_lib_suffixes)
find_package(PkgConfig QUIET)
if(PKG_CONFIG_FOUND)
pkg_check_modules(PC_LIBUSB libusb-1.0)
endif()
endif()
find_path(LIBUSB_INCLUDE_DIR
NAMES
libusb.h
PATHS
${PC_LIBUSB_INCLUDE_DIRS}
${PC_LIBUSB_INCLUDEDIR}
${_dirs}
HINTS
"${LIBUSB_ROOT_DIR}"
PATH_SUFFIXES
include/libusb-1.0
include
libusb-1.0)
find_library(LIBUSB_LIBRARY
NAMES
libusb-1.0
usb-1.0
PATHS
${PC_LIBUSB_LIBRARY_DIRS}
${PC_LIBUSB_LIBDIR}
${_dirs}
HINTS
"${LIBUSB_ROOT_DIR}"
PATH_SUFFIXES
${_lib_suffixes})
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Libusb-1.0
DEFAULT_MSG
LIBUSB_LIBRARY
LIBUSB_INCLUDE_DIR)
if(LIBUSB_INCLUDE_DIR AND LIBUSB_LIBRARY)
set(LIBUSB_FOUND true)
endif()
if(LIBUSB_FOUND)
set(LIBUSB_LIBRARIES "${LIBUSB_LIBRARY}")
set(LIBUSB_INCLUDE_DIRS "${LIBUSB_INCLUDE_DIR}")
mark_as_advanced(LIBUSB_ROOT_DIR)
endif()
if(LIBUSB_FOUND AND NOT CMAKE_CROSSCOMPILING)
if(LIBUSB_SKIP_VERSION_CHECK)
message(STATUS "Skipping libusb version number check.")
#unset(LIBUSB_VERSION)
set(LIBUSB_VERSION "1.0.22")
else()
message(STATUS "Checking libusb version...")
if(WIN32)
string(REPLACE ".lib" ".dll" LIBUSB_DLL "${LIBUSB_LIBRARIES}")
try_run(LIBUSB_VERCHECK_RUN_RESULT
LIBUSB_VERCHECK_COMPILED
${CMAKE_HELPERS_BINARY_DIR}
${CMAKE_HELPERS_SOURCE_DIR}/libusb_version.c
CMAKE_FLAGS "-DINCLUDE_DIRECTORIES=${LIBUSB_INCLUDE_DIRS}"
RUN_OUTPUT_VARIABLE LIBUSB_VERSION
ARGS "\"${LIBUSB_DLL}\""
)
else()
try_run(LIBUSB_VERCHECK_RUN_RESULT
LIBUSB_VERCHECK_COMPILED
${CMAKE_HELPERS_BINARY_DIR}
${CMAKE_HELPERS_SOURCE_DIR}/libusb_version.c
CMAKE_FLAGS "-DINCLUDE_DIRECTORIES=${LIBUSB_INCLUDE_DIRS}" "-DLINK_LIBRARIES=${LIBUSB_LIBRARIES}"
RUN_OUTPUT_VARIABLE LIBUSB_VERSION
)
endif()
if (NOT LIBUSB_VERCHECK_COMPILED OR NOT LIBUSB_VERCHECK_RUN_RESULT EQUAL 0 )
message(STATUS "${LIBUSB_VERSION}")
set(LIBUSB_VERSION "0.0.0")
message(WARNING "\nFailed to compile (compiled=${LIBUSB_VERCHECK_COMPILED}) or run (retval=${LIBUSB_VERCHECK_RUN_RESULT}) libusb version check.\n"
"This may occur if libusb is earlier than v1.0.16.\n"
"Setting LIBUSB_VERSION to ${LIBUSB_VERSION}.\n")
return()
endif()
endif()
endif()
#
mark_as_advanced(LIBUSB_LIBRARY LIBUSB_INCLUDE_DIR )
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