This patch is part of a series of patches for speech-tools for
Debian GNU/Linux, which primarily fix build errors with GCC 4.3 and newer.

--- speech-tools-1.2.3.orig/configure.in
+++ speech-tools-1.2.3/configure.in
@@ -34,6 +34,7 @@
 
 AC_CANONICAL_SYSTEM
 AC_PROG_CC
+AC_PROG_CXX
 if test "x$GCC" = "xyes"; then
 	CFLAGS="$CFLAGS -Wall"
 fi