Problem w/ getgroups in Gawk 3.1.1 on Ultrix

[Bert Deknuydt]

Hello,

I found the following problem with the most recent Gawk on Ultrix (mips and
vax).

On Ultrix, the getgroups() function does not conform to the standards and
returns '-1' if it's given (0,NULL) as arguments.  In fact, it continues to
return errors, unless the array is large enough to store all gid's.
Hence, gawk 3.1.1 always complains about "could not find groups:".  

I'd see two solutions ... 1) Somehow arrange HAVE_GETGROUPS to be false for
a nonconform getgroups(), 2) modify perfectly correct code ...

Greetings, Bert.


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