FreeTDS Development Group

["Lowden, James K" <james.k.lowden AT alliancebernstein.com>]

> From: ZIGLIO, Frediano, VF-IT
> Sent: Tuesday, January 23, 2007 9:26 AM
> > I am having problems attempting to install the freeTDS software
> > on our aix 5.3.0.0 server.  I have downloaded the most recent
> > stable release (0.64) of freeTDS,  and have installed unixODBC
> > within the /usr/local/unixODBC directory.
...
> > The configure script seems to go through ok, however when I then
> > enter the make command, I get the following error:
> > 
> > net.c:188:2: error: #error One should be defined make: 1254-004
> > The error code from the last command is 1.

You might try replacing the #error directive with: 

setsockopt(tds->s, SOL_TCP, TCP_NODELAY, (const void *) &len, 
        sizeof(len));


Even if the detection of the header file failed, it might still compile.
If it does, you're in good shape.  

If that doesn't compile, I think it would be OK to simply delete the
#error directive for now.  See below.  

Also cf.
http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?topic=/c
om.ibm.aix.prftungd/doc/prftungd/tcp_nodelay_tcp_nagle_limit.htm

> It's related to TCP_NODELAY detection, however I don't understand.
...
> Perhaps this file is installed by another system package? For some
> reason is this file missing (deleted, renamed or so on) ?

I think the fallback should be to use none of these features.  They're
only performance enhancements; the TDS protocol doesn't require them.
We could add a #warning that performance might be adversely affected.  

Am I missing something?  Do we have metrics on this?  

--jkl

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