Re: Multilib directory of n32 libs

On Tue, Jun 11, 2013 at 2:06 AM, David Daney <[email protected]> wrote:
> On 06/08/2013 11:24 PM, YunQiang Su wrote:
>>
>> On Sun, Jun 9, 2013 at 1:57 PM, Matt Turner <[email protected]> wrote:
>>>
>>> On Sat, Jun 8, 2013 at 7:23 PM, YunQiang Su <[email protected]> wrote:
>>>>
>>>> On Sun, Jun 9, 2013 at 12:23 AM, Matt Turner <[email protected]> wrote:
>>>>>
>>>>> On Sat, Jun 8, 2013 at 8:54 AM, YunQiang Su <[email protected]> wrote:
>>>>>>
>>>>>> Any idea about is there another distribution has n32 or n64 port, and
>>>>>> at the same time that multilib is supported?
>>>>>
>>>>>
>>>>> Yes, Gentoo. We do the standard o32 -> lib, n32 -> lib32, n64 -> lib64.
>>>>
>>>> Is there a port to n32 or n64 of gentoo?
>>>> On n32 or n64 port, is it fit to put o32 libraries into lib directly?
>>>
>>>
>>> Yes, I have n32-multilib (n32 base system, and n64 and o32 glibc and
>>> gcc libraries) and n64. o32 goes in lib regardless of the ABI of the
>>> base system.
>>
>> It is not forbid to put o32 libraries to /lib in mips64 port in policy
>> (Fix me if I am wrong).
>
>
> OK: I think you are wrong here.
>
> o32 libraries must go in /lib and /usr/lib as Matt and I have already told
> you.
>
> If the mips64 port policy disagrees with this, then the policy is incorrect
> and must be changed.
>
here, policy is short of Debian Policy Manual

>
>
>> While as ldso will always looks for /lib and /usr/lib/, thus if we put
>> it in /libo32,
>
>
> No, I think you misunderstand how ld.so works.
>
> ld.so looks in the proper directories already, and functions perfectly with
> the library directories named as Matt and I have told you.
>
In my understanding, ldso will look for libraries in the order in
http://unixhelp.ed.ac.uk/CGI/man-cgi?ld.so

The /lib and /usr/lib always the default pathes, while we can give it other
pathes when configure or by config file.
>
>
>> it will still work and packages built on other distributions(like
>> packages converted by alian).
>>
>> And the Debian package would not work on other distributions where
>> /libo32 is not supported,
>> Since we have multiarch support, this is not a big problem ;)
>
>
> If you are using multi-arch, then all of this is moot.  You need to use the
> proper multi-arch directories instead.
>
> David Daney
>
>



--
YunQiang Su