$OpenBSD$
--- Makefile.conf.orig	Sun Apr  3 21:14:14 2016
+++ Makefile.conf	Sun Apr  3 21:16:01 2016
@@ -113,8 +113,8 @@ endif
 
 ifeq ($(HOST),UNIX)
 # Extra flags for compiling libroutino shared library (SONAME)
-LDFLAGS_SONAME=-Wl,-soname=libroutino.so.$(SOVERSION)
-LDFLAGS_SLIM_SONAME=-Wl,-soname=libroutino-slim.so.$(SOVERSION)
+LDFLAGS_SONAME=-Wl,-soname=libroutino.so.${libroutino_ltversion}
+LDFLAGS_SLIM_SONAME=-Wl,-soname=libroutino-slim.so.${libroutino_slim_ltversion}
 endif
 
 # Put the current directory in the shared library path for the router using libroutino