Found Solaris sqlca problem, I think...

I added a bunch of print statements in ecpglib/* and it appeared that
ECPGraise is being called, but is writing to the wrong memory location.
Then I noticed compile warnings that "-pthread" is an invalid parameter. It
appears configure is improperly writing config.status. In config.status I
see:

s,@THREAD_LIBS@,-pthread,;t t

I changed that to

s,@THREAD_LIBS@,-lpthread,;t t

and rebuilt ecpglib/*. The problem appears to have gone away. I now get
the error code set correctly. I'll have to do a full rebuild on Postgres
tonight (on a rather slow system) and then do more extensive testing.

Wes