diff --git a/configure.ac b/configure.ac
index e0453aabf..34858087d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -366,6 +366,10 @@ else
     HAVE_LIBSAMPLERATE=0
 fi
 
+if test "x${HAVE_LIBSAMPLERATE}" = x1 ; then
+   AC_DEFINE([HAVE_LIBSAMPLERATE], 1, [Have libsamplerate?])
+fi
+
 AC_SUBST(LIBSAMPLERATE_CFLAGS)
 AC_SUBST(LIBSAMPLERATE_LIBS)
 AC_SUBST(HAVE_LIBSAMPLERATE)