Add official support for Win32

[aturner]

The download stats for the old Win32 port of tcpreplay is actually quite high. Seems that there is quite a demand for it. Hence, I should look at supporting tcpreplay under MinGW or something like that under Windows. First target should be WinXP with others to follow as needed.

[aturner]

(In [1697]) basic tweaks for winpcap/win32. Need to improve though. refs #110

[aturner]

(In [1698]) cleanup of r1697. refs #110

[aturner]

(In [1699]) fix tcpdump.c refs #110

[aturner]

(In [1709]) remove code detection for Lyx, etc. make tcprewrite enabled by default add HAVE_WINPCAP refs #66, #75, #15, #110

[aturner]

(In [1710]) fix compile warning refs #110

[aturner]

(In [1712]) add detection support for pcap_version[] and fix a rather serious bug with WinPcap? detection created in r1709. refs #111, #110

[aturner]

(In [1713]) more win32 fixes, and fix pcap_sendpacket() support. refs #110

[aturner]

(In [1716]) improve Win32 support. mostly fix printing libpcap/winpcap version. refs #110

[aturner]

Looks like MinGW is a non-starter since Autogen requires setlongjmp() which MinGW doesn't and probably will never support. However, Cygwin does support this and seems to mostly work. There does seem to be some problems with Guile+Autogen causing strange crashes which actually seem to break the filesystem (some files can't be deleted/modified until after a reboot).

The good news is that on my XP/Cygwin box, I've actually got tcpreplay sending traffic.

[aturner]

(In [1719]) fix sendpacket() on Win32. refs #110

[aturner]

(In [1720]) proper detection for cygwin/win32 refs #110

[aturner]

(In [1727]) autoheader update for Win32. refs #110

[aturner]

(In [1729]) don't use WIN32- it causes all sorts of problems. refs #110

[aturner]

(In [1737]) add pcap_snapshot_override refs #130 fix win32 refs #110

[aturner]

(In [1757]) add an empty line to the end of each file to suppress compiler warnings under win32/cygwin. refs #110

[aturner]

(In [1761]) document initial windows support. refs #110

[aturner]

(In [1766]) alias string is set in get_interface for win32. refs #110

[aturner]

(In [1768]) need to pack the cache file header. Seems ok under osx/linux, but windows pads things out. refs #110

[aturner]

(In [1769]) handle make test more gracefully for systems which we do not know the default nics refs #110, #47

[aturner]

(In [1783]) ignore .exe. refs #110

[aturner]

(In [1784]) ignore .exe refs #110

[aturner]

(In [1785]) ignore .exe refs #110

[aturner]

Good enough for now.