Re: [HACKERS] Patch for glibc2 date problems

"Thomas G. Lockhart" wrote:
>> The patch for glibc2 dates is attached. With this applied, a Linux system
>> with libc6 (glibc2) passes all the date and time related regression tests.
>
>It looks as though this patch is a bit Linux-specific (or specific to some v
>ersion of glibc which has only been tested on
>Linux).

I don't have experience of using glibc2 on any other type of machine.

However, isn't part of the point of it to remove inter-machine differences?

>
>Can we wait until glibc2 settles down, or provide this as an add-on patch ra
>ther than merging it into the main tree? I hate
>adding machine-specific code into otherwise general code...

I guess that's up to you.
>
>Another possibility would be to add a new #define variable like HAVE_FUNNY_L
>IBRARY in config.h or in linux.h so we can

Why isn't
#if __GLIBC__ < 2
enough for this?
>possibly use this with other ports if necessary in the future.
>

I don't have experience of using glibc2 on any other type of machine.
However, isn't part of the point of it to remove inter-machine differences?

>I'm planning on installing RH5.0 sometime soon (I have a clean disk so can f
>all back to RH4.2). I'm sure I'll sound more
>sympathetic by then :)
>
> - Tom

My assumption was that any system using glibc2 would not have a broken
rint() function; so the general change to TMODULO would be justified.

The change of the test of `var != 0' to `var != rint(var)' should not break
anything, even if var is non-zero. It is merely saying, don't use
decimal points if there's no decimal part.

The remaining part of the patch is to force the undefinition of
HAVE_INT_TIMEZONE; again this is glibc2-specific, but I don't know
any reason to suppose it wouldn't be needed on any machine with glibc2.

It would really be helpful to have someone on a non-Linux machine test
it; but is there anyone?

--
Oliver Elphick Oliver(dot)Elphick(at)lfix(dot)co(dot)uk
Isle of Wight http://www.lfix.co.uk/oliver

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