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# razor-de: Configure libudev environment
#
# UDEV_FOUND - system has a libudev
# UDEV_INCLUDE_DIR - where to find header files
# UDEV_LIBRARIES - the libraries to link against udev
# UDEV_STABLE - it's true when is the version greater or equals to 143 - version when the libudev was stabilized in its API
#
# copyright (c) 2011 Petr Vanek <petr@scribus.info>
# Redistribution and use is allowed according to the terms of the BSD license.
#
FIND_PATH(
UDEV_INCLUDE_DIR
libudev.h
/usr/include
/usr/local/include
${UDEV_PATH_INCLUDES}
)
FIND_LIBRARY(
UDEV_LIBRARIES
NAMES udev libudev
PATHS
/usr/lib${LIB_SUFFIX}
/usr/local/lib${LIB_SUFFIX}
${UDEV_PATH_LIB}
)
IF (UDEV_LIBRARIES AND UDEV_INCLUDE_DIR)
SET(UDEV_FOUND "YES")
execute_process(COMMAND pkg-config --atleast-version=143 libudev RESULT_VARIABLE UDEV_STABLE)
# retvale is 0 of the condition is "true" so we need to negate the value...
if (UDEV_STABLE)
set(UDEV_STABLE 0)
else (UDEV_STABLE)
set(UDEV_STABLE 1)
endif (UDEV_STABLE)
message(STATUS "libudev stable: ${UDEV_STABLE}")
ENDIF (UDEV_LIBRARIES AND UDEV_INCLUDE_DIR)
IF (UDEV_FOUND)
MESSAGE(STATUS "Found UDev: ${UDEV_LIBRARIES}")
MESSAGE(STATUS " include: ${UDEV_INCLUDE_DIR}")
ELSE (UDEV_FOUND)
MESSAGE(STATUS "UDev not found.")
MESSAGE(STATUS "UDev: You can specify includes: -DUDEV_PATH_INCLUDES=/opt/udev/include")
MESSAGE(STATUS " currently found includes: ${UDEV_INCLUDE_DIR}")
MESSAGE(STATUS "UDev: You can specify libs: -DUDEV_PATH_LIB=/opt/udev/lib")
MESSAGE(STATUS " currently found libs: ${UDEV_LIBRARIES}")
IF (UDev_FIND_REQUIRED)
MESSAGE(FATAL_ERROR "Could not find UDev library")
ENDIF (UDev_FIND_REQUIRED)
ENDIF (UDEV_FOUND)