--- libusb-0.1.12/configure.in.orig	2006-03-04 03:53:04.000000000 +0100
+++ libusb-0.1.12/configure.in	2008-05-23 16:08:59.000000000 +0200
@@ -149,6 +149,7 @@
 fi
 
 # Checks for programs.
+AC_PROG_CXX
 AC_LANG_CPLUSPLUS
 AC_PROG_CC
 AM_PROG_CC_C_O