From: Dima Kogan <dima@secretsauce.net>
Date: Sun, 12 Jan 2014 23:58:39 -0800
Subject: packing struct tcphdr to improve portability
Forwarded: https://github.com/simsong/tcpflow/issues/67

I was seeing build failures on arm and sparc. These were happening because of
unaligned loads of struct tcphdr. I now declare this structure as packed, so
this does not happen


Index: tcpflow/src/be13_api/bulk_extractor_i.h
===================================================================
--- tcpflow.orig/src/be13_api/bulk_extractor_i.h	2014-01-12 23:57:16.202181700 -0800
+++ tcpflow/src/be13_api/bulk_extractor_i.h	2014-01-12 23:57:45.030324635 -0800
@@ -279,7 +279,7 @@
     uint16_t th_win;            /* window */
     uint16_t th_sum;            /* checksum */
     uint16_t th_urp;            /* urgent pointer */
-};
+} __attribute__((packed));
 /*
  * The packet_info structure records packets after they are read from the pcap library.
  * It preserves the original pcap information and information decoded from the MAC and