Fixed several STUN bugs: USERNAME, REALM etc are not allowed in the response, retransmission timer calculation bug, etc.

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@1275 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/third_party/build/Makefile b/third_party/build/Makefile
index 204adcf..82ca985 100644
--- a/third_party/build/Makefile
+++ b/third_party/build/Makefile
@@ -1,3 +1,5 @@
+DIRS = resample
+
 include ../../build.mak
 include $(PJDIR)/build/common.mak