AC_SYS_LARGEFILE
AC_PROG_LIBTOOL
+dnl /* prefix is /usr, exec_prefix in /, if overridden exec_prefix follows prefix */
+AC_PREFIX_DEFAULT([/usr])
+test "$prefix" = NONE && test "$exec_prefix" = NONE && exec_prefix=
+
dnl /* libudev version */
LIBUDEV_LT_CURRENT=0
LIBUDEV_LT_REVISION=6