[BUILD] fix Makefile.bsd and Makefile.osx for stream_interface

Did a full compile of the 1.3.15.7 - 20081208 snapshot on Freebsd-7.x
recently, and noted that there needs to be a quick patch done on the
Makefile for bsd machines.

This was due to the stream_interface replacing the send data commands
in the rewrite Willy did a while ago.

Simple fix, and it compiled cleanly otherwise.  Thanks for the work
Willy!

Cheers,
  Ross.

-=
diff --git a/Makefile.osx b/Makefile.osx
index c6b03c6..64f25e9 100644
--- a/Makefile.osx
+++ b/Makefile.osx
@@ -100,7 +100,7 @@
        src/time.o src/fd.o src/regex.o src/cfgparse.o src/server.o \
        src/checks.o src/queue.o src/client.o src/proxy.o src/proto_uxst.o \
        src/proto_http.o src/stream_sock.o src/appsession.o src/backend.o \
-       src/senddata.o src/dumpstats.o src/proto_tcp.o \
+       src/stream_interface.o src/dumpstats.o src/proto_tcp.o \
        src/session.o src/hdr_idx.o src/ev_select.o \
        src/ev_poll.o \
        src/acl.o src/memory.o \