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# - Try to find USB
# Once done this will define
#
# USB_FOUND - system has USB
# USB_INCLUDE_DIRS - the USB include directory
# USB_LIBRARIES - Link these to use USB
# USB_DEFINITIONS - Compiler switches required for using USB
#
# Copyright (c) 2009 Andreas Schneider <mail@cynapses.org>
#
# Redistribution and use is allowed according to the terms of the New
# BSD license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
#
if (LIBUSB_LIBRARIES AND LIBUSB_INCLUDE_DIRS)
# in cache already
set(LIBUSB_FOUND TRUE)
elseif (APPLE)
# use system libraries
set(LIBUSB_FOUND FALSE)
else (LIBUSB_LIBRARIES AND LIBUSB_INCLUDE_DIRS)
find_path(LIBUSB_INCLUDE_DIR
NAMES
usb.h
PATHS
/usr/include
/usr/local/include
/opt/local/include
/sw/include
/usr/include/gdal
/usr/local/include/gdal
/opt/local/include/gdal
/sw/include/gdal
)
# debian uses version suffixes
# add suffix evey new release
find_library(LIBUSB_LIBRARY
NAMES
usb
PATHS
/usr/lib
/usr/lib64
/usr/local/lib
/opt/local/lib
/sw/lib
)
set(LIBUSB_INCLUDE_DIRS
${LIBUSB_INCLUDE_DIR}
)
set(LIBUSB_LIBRARIES
${LIBUSB_LIBRARY}
)
if (LIBUSB_INCLUDE_DIRS AND LIBUSB_LIBRARIES)
set(LIBUSB_FOUND TRUE)
endif (LIBUSB_INCLUDE_DIRS AND LIBUSB_LIBRARIES)
if (LIBUSB_FOUND)
if (NOT LIBUSB_FIND_QUIETLY)
message(STATUS "Found LIBUSB: ${LIBUSB_LIBRARIES}")
endif (NOT LIBUSB_FIND_QUIETLY)
else (LIBUSB_FOUND)
if (LIBUSB_FIND_REQUIRED)
message(FATAL_ERROR "Could not find LIBUSB")
endif (LIBUSB_FIND_REQUIRED)
endif (LIBUSB_FOUND)
# show the LIBUSB_INCLUDE_DIRS and LIBUSB_LIBRARIES variables only in the advanced view
mark_as_advanced(LIBUSB_INCLUDE_DIRS LIBUSB_LIBRARIES)
endif (LIBUSB_LIBRARIES AND LIBUSB_INCLUDE_DIRS)
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