[B2-devel] IRIX patches

[Brian J. <bjj...@us...>]

I've attached a few more patches for Irix, which get UDP tunnelling
working and fix a few compillation problems.

The fix to ether.cpp is necessary because SGI's header files #define
sa_len as a path through the structs and unions they use for their
sockaddr_in structure.  So it breaks badly if you use it as an
ordinary variable name.

I also had to replace socklen_t with int in ether_unix.cpp, since
SGI's headers don't define socklen_t.  I have no idea how standard (or
not) it is....  Perhaps BasiliskII should provide its own typedef for
socklen_t if the system header files don't?

I added a "WANT_ESD=no" to the IRIX portion of configure.in, since the
IRIX always uses audio_irix.cpp, which doesn't use ESD.  However, ESD
is available on SGI's freeware web site, and someone building BII may
have it installed.  Unfortunately, by the time the platform-specific
portion of configure.in runs, ESD has already been detected, and
CFLAGS, LIBS, etc. adjusted accordingly.  So setting WANT_ESD to "no"
only affects the report printed by configure.  What's the clean way
around this issue?

						Brian J. Johnson

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