--- configure.ac.orig	2008-10-07 17:14:07.000000000 +0400
+++ configure.ac	2009-03-08 11:54:32.000000000 +0300
@@ -15,9 +15,8 @@
 
 # Checks for libraries.
 
-PKG_CHECK_MODULES(USB, libusb >= 0.1.4,,
-                 AC_MSG_ERROR([*** Required libusb >= 0.1.4 not installed ***]))
 AC_CHECK_LIB([usbpath],[usb_path2devnum],,,-lusb)
+USB_LIBS=-lusb
 
 LIBS="$LIBS $USB_LIBS"
 CFLAGS="$CFLAGS $USB_CFLAGS"