Index: ccrtp-1.7.0/configure.ac
===================================================================
--- ccrtp-1.7.0.orig/configure.ac
+++ ccrtp-1.7.0/configure.ac
@@ -9,6 +9,7 @@
 # WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
 # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
+m4_pattern_allow(LT_VERSION)
 AC_INIT(src/ccrtp/rtp.h)
 
 cfg_options=""