[phobos] 32 and 64 bit libraries on Linux

[Walter Bright]

So, is this what happens:

    gcc    => looks in /usr/lib
    gcc -m32     => looks in /usr/lib32
    gcc -m64    => looks in /usr/lib64

?

Russel Winder wrote:
> Walter,
>
> I think your naming proposal here will lead to serious problems.
> Speaking from a very Linux, indeed Debian and Ubuntu, centred
> perspective, my machines have a natural bit width and so /usr/lib
> relates to the natural bit width.  64-bit in may case.  There is
> also /usr/lib32 and /usr/lib64.  In my case /usr/lib64 is a symbolic
> link to /usr/lib.  /usr/lib32 cotnains all the 32-bit libraries etc.  In
> all cases the name of a library is always the same, e.g. libphobos2.a no
> matter what the bit width.
>
> Obviously the DMD distribution can do what it likes as it doesn't
> actually interact with /usr since it is not coming in via a package (as
> 32-bit packages should not be installed on a 64-bit platform -- see
> above).  The problem is though that the DMD distribution should not do
> anything that makes it hard for Debian, Ubuntu, Fedora, RHEL, etc.
> packagers to work within the rules of their distribution.
>
> On Mon, 2011-01-03 at 22:37 -0800, Walter Bright wrote:
>   
>> Or even better, just go with:
>>
>>    libphobos.a    32 bit library
>>    libphobos-64.a   64 bit library
>>
>> and:
>>
>>    libphobos2.a    32 bit library
>>    libphobos2-64.a   64 bit library
>>
>> simple, easy, doesn't break anything.
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>>     
>
>   
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