diff -ur cowbell-0.2.7.1.orig/configure.in cowbell-0.2.7.1/configure.in
--- cowbell-0.2.7.1.orig/configure.in	2006-05-09 05:44:20.000000000 +0300
+++ cowbell-0.2.7.1/configure.in	2008-12-19 21:29:20.000000000 +0200
@@ -6,6 +6,7 @@
 AC_PROG_INSTALL
 AC_PROG_INTLTOOL([0.21])
 AC_PROG_LIBTOOL
+AC_PROG_CXX
 
 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
 if test "x$PKG_CONFIG" = "xno"; then