[PATCH] Fix optional variables in libargp

[Andrew Schulman]

>  I have tested the implementation on x86-64 with RedHat's Prelink utility,
> and it works quite fine. i386 should work too, but please retest, just in
> case.

Fedin, thanks for sending this.  I've tested it for x86_64, and it works
there.  However in x86, in my testing I can't get it to work.  I tried
removing the PREFIX function, and after that it did work once, but I've
tried it again several times and now I can't reproduce that.

So at this point your patch doesn't work in x86 for me.  I'd appreciate it
if someone else could test it, or suggest a modification to make it work.

Andrew


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