Index: configure.ac
===================================================================
--- configure.ac	(revision 147197)
+++ configure.ac	(working copy)
@@ -1464,7 +1464,12 @@
 
 AST_EXT_LIB_CHECK([USB], [usb], [usb_init], [usb.h], [])
 
-AST_EXT_LIB_CHECK([VORBIS], [vorbis], [vorbis_info_init], [vorbis/codec.h], [-lm -lvorbisenc])
+if test "${OSARCH}" = "OpenBSD";
+then
+	AST_EXT_LIB_CHECK([VORBIS], [vorbis], [vorbis_info_init], [vorbis/codec.h], [-lm -lvorbisenc -logg])
+else
+	AST_EXT_LIB_CHECK([VORBIS], [vorbis], [vorbis_info_init], [vorbis/codec.h], [-lm -lvorbisenc])
+fi
 
 AC_LANG_PUSH(C++)