Do you know how many 64-bit architectures Fedora has?

[Neal Gompa]

On Mon, Aug 24, 2015 at 9:12 AM, Marcin Juszkiewicz <mjuszkiewicz at redhat.com
> wrote:

> Hi
>
> During last few days I fetched over 26 thousand of Fedora package
> repositories. Plan to go though all spec files and submit some patches
> mainly related to my aarch64 work.
>
> We live in a world where most of Linux systems are either 32 or 64 bit.
> But do you know how many 64-bit architectures Fedora and RHEL have?
>
> According to spec files we have at least 8 while current Fedora has 1
> primary and 4 secondary ones.
>
> x86-64 is main one which most of developers use for everything
> aarch64 is my favourite secondary one
> ppc64 is probably fastest one
> ppc64le is little endian version of previous
> s390x is fridge size mainframe (is such small exist)
>
> Specs also mention ia64 (not supported Itanium), alpha (I have some
> friends who still own them but do not run), sparc64/sparcv9 (even Debian
> got rid of sparc support).
>
> But why I write?
>
> Because there are lot of code like:
>
> %ifarch x86_64 ppc64 ia64 s390x sparc64
>     USE_64=1
> %endif
>
> Where is should be:
>
> %if 0%{?__isa_bits} == 64
>  USE_64=1
> %endif
>
> Which works since RHEL6 (from what I know). And it automatically covers
> all 64-bit architectures not only those which maintainer remembers.
>
> So please do me a favour and take a look at your packages and adapt their
> spec files. Otherwise sooner or later such patch may land in bugtracker but
> instead I could fix some other package at same time.
> --
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​Oh, yes! I was trying to find something like this all weekend for my Copr
for reprepro. I have to make a patch to access apt-methods in /usr/lib64 on
64-bit systems, but on 32-bit systems it should remain /usr/lib.

You just made my day. ​


-- 
真実はいつも一つ！/ Always, there's only one truth!
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