$OpenBSD: patch-acinclude_m4,v 1.3 2008/06/11 21:09:06 martynas Exp $
--- acinclude.m4.orig	Fri Mar 14 17:43:34 2008
+++ acinclude.m4	Thu Mar 20 14:05:42 2008
@@ -304,13 +304,18 @@ extern_flags=""
 need_extern="no"
 LIBS="$LIBS $FLIBS"
 
+save_LIBS="$LIBS"
+LIBS="-lossaudio -lm -pthread $LIBS"
+
 AC_CHECK_LIB(portaudio,Pa_GetDefaultInputDevice,found_portaudio19="yes",found_portaudio19="no")
 AC_CHECK_HEADER(portaudio.h,[],found_portaudio19="no")
 
 if test x"$found_portaudio19" == xyes; then
   LIBS="-lportaudio $LIBS"
-  CFLAGS="$CFLAGS"
+  CFLAGS="-pthread $CFLAGS"
   AC_DEFINE(HAVE_PORTAUDIO19, 1, [Set to 1 if you have libportaudio (v19 API)])
+else
+  LIBS="$save_LIBS"
 fi
 
 if test x"$found_portaudio19" != xyes; then
