--- a/configure.ac
+++ b/configure.ac
@@ -4,6 +4,7 @@ AC_CONFIG_AUX_DIR(config)
 AM_INIT_AUTOMAKE(libmpcdec,1.2.6)
 AM_CONFIG_HEADER(include/config.h)
 
+AC_PROG_CXX
 AM_PROG_LIBTOOL
 
 CFLAGS="$CFLAGS -O3 -fomit-frame-pointer -fPIC"