- AC_SEARCH_LIBS([udev_new], [udev],, AC_MSG_ERROR("required library 'udev' is missing"))
- REQUIRES="udev"
+ PKG_CHECK_MODULES([UDEV],[libudev],,[has_libudev="no"]; AC_MSG_WARN("library 'udev' is missing - adapter detection will not be available"))
+ AC_CHECK_HEADER(lockdev.h,, AC_MSG_ERROR("required library 'liblockdev' is missing"))
+ LIBS+=" -lrt -llockdev"