[LAD] building the new Guitarix LV2 Amp

[hermann meyer]

Am 13.12.2012 07:35, schrieb David Robillard:
> On Thu, 2012-12-13 at 07:08 +0100, hermann meyer wrote:
>> Am 13.12.2012 04:15, schrieb David Robillard:
>>> On Wed, 2012-12-12 at 21:34 +0000, Chris Cannam wrote:
>>>> On 11 December 2012 16:31, David Robillard<d at drobilla.net>   wrote:
>>>>> Looks like you are building against a static library. Since you are building
>>>>> a shared module, pedantically you can't do this
>>>> A static library is just a pile of object files. Of course you can
>>>> build a shared object against them. The problem is just that the
>>>> objects in this particular static library were built without PIC.
>>> Well, yes, "pedantically" was not quite the right word.  It is more of a
>>> sweeping generalization.
>>>
>>> If you're building them yourself, ensure they're PIC, and it will work,
>>> but it's reasonable to expect static libraries from elsewhere to be
>>> non-PIC, particularly things that aim to be small since PIC code is
>>> larger.
>>>
>> So if I add -fPIC to the static lib build flags for libgxw/mm, it will
>> work on 64bit also?
>> Right now I prefer the static build, as long no other application or
>> plug use it.
> Yes, you should be able to link a shared library to a static library
> compiled as PIC even on 64-bit.  Hence the "recompile with -fPIC"
> message from the linker :)
Thanks for confirm it.

> Probably fine if it's part of the same build process, maybe not so much
> if it's from another package.  If it is, on Lignux at least, plugins
> depending on shared libraries isn't really a big deal anyway.
>
> -dr
>
Well, just if packagers like to split the package, which they often like 
to do :-) , it will be handy to reduce the dependency. So that the LV2 
plug is installable even if guitarix itself isn't installed.
As long libgxw/mm only lives in the guitarix package.
As well, the plug just use a small amount of the lib, so we can avoid 
loading it, even if it increase the plug-so.size
So I will add the flag, and anyone could decide self what build method 
is preferred.

regards
hermann