bug fix

[daml@dme.nt.gov.au (Damien Lunsford 61-89-895256)]

for solaris users.....

in client/client.c

***************
42c42
< #if defined(__sgi__)
---
> #if defined(__sgi__) || (defined(__sun__) && defined(__SVR4))
***************

Otherwise we get an error compiling with Solaris 2.3 about no definition for
SI_HOSTNAME.

Cheers
Brett

         Northern Territory                       bmw@dme.nt.gov.au
    Department of Mines and Energy                bmw@it.ntu.edu.au
              Australia
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