getrlimit() patch

[Barath Aron]

Hello,

I made a patch that fixes (at least to me) the declaration of an unused 
variable if HAVE_GETRLIMIT is false. The OS I use does not have getrlimit().

Is sysconf(3) mandatory? Because it is not guarded (HAVE_SYSCONF ?). It 
is a few lines below where my patch applies.

And a quick question: Can this whole thing work without fork(2)? I have 
implemented posix_spawn(3) in GNU make (to replace forks) with success, 
however I'm still waiting for the patch to be applied.

Aron

0000-lib_fdleak.c.patch
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