Re: ambix LV2 vs ardour?

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On Fri, Feb 22, 2019 at 4:29 AM Patrick Kuhn Botelho <
[email protected]> wrote:

> Could you PLEASE stop sending me fucking emails? I am not using ardour for
> 3 Years and you keep clogging up my inbox!
> ------------------------------
> *Von:* Ardour-Users <[email protected]> im Auftrag
> von [email protected] <[email protected]>
> *Gesendet:* Donnerstag, 21. Februar 2019 14:21
> *An:* Robin Gareus
> *Cc:* [email protected]
> *Betreff:* Re: [Ardour-Users] ambix LV2 vs ardour?
>
> Hello,
>
> Instead of just ldd, can you try "ldd -r" sometime ldd doesn't show every
> problem and forcing a reloc will show the problem.
>
> Best regards,
>
> YC
>
> ----- Mail original -----
> De: "Robin Gareus" <[email protected]>
> À: [email protected]
> Envoyé: Jeudi 21 Février 2019 14:11:23
> Objet: Re: [Ardour-Users] ambix LV2 vs ardour?
>
> On 2/21/19 8:06 AM, Fernando Lopez-Lezcano wrote
> > # ldd /usr/lib64/lv2/ambix_converter_o1.lv2/ambix_converter_o1.so
> >     linux-vdso.so.1 (0x00007ffff87fa000)
> >     libzita-convolver.so.3 => /lib64/libzita-convolver.so.3
> > (0x00007f8f1047f000)
> >     libX11.so.6 => /lib64/libX11.so.6 (0x00007f8f1033a000)
> >     libXext.so.6 => /lib64/libXext.so.6 (0x00007f8f10325000)
> >     libXinerama.so.1 => /lib64/libXinerama.so.1 (0x00007f8f10320000)
> >     libasound.so.2 => /lib64/libasound.so.2 (0x00007f8f10218000)
> >     libdl.so.2 => /lib64/libdl.so.2 (0x00007f8f10212000)
> >     libfreetype.so.6 => /lib64/libfreetype.so.6 (0x00007f8f10152000)
> >     librt.so.1 => /lib64/librt.so.1 (0x00007f8f10148000)
> >     libglut.so.3 => /lib64/libglut.so.3 (0x00007f8f10090000)
> >     libXmu.so.6 => /lib64/libXmu.so.6 (0x00007f8f10073000)
> >     libXi.so.6 => /lib64/libXi.so.6 (0x00007f8f10061000)
> >     libGL.so.1 => /lib64/libGL.so.1 (0x00007f8f0ffcd000)
> >     libGLU.so.1 => /lib64/libGLU.so.1 (0x00007f8f0ff59000)
> >     libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f8f0ff37000)
> >     libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007f8f0fd9f000)
> >     libm.so.6 => /lib64/libm.so.6 (0x00007f8f0fc1b000)
> >     libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f8f0fc00000)
> >     libc.so.6 => /lib64/libc.so.6 (0x00007f8f0fa3a000)
> >     libfftw3f.so.3 => /lib64/libfftw3f.so.3 (0x00007f8f0f827000)
> >     libxcb.so.1 => /lib64/libxcb.so.1 (0x00007f8f0f7fc000)
> >     /lib64/ld-linux-x86-64.so.2 (0x00007f8f10991000)
> >     libbz2.so.1 => /lib64/libbz2.so.1 (0x00007f8f0f7e9000)
> >     libpng16.so.16 => /lib64/libpng16.so.16 (0x00007f8f0f7b3000)
> >     libz.so.1 => /lib64/libz.so.1 (0x00007f8f0f799000)
> >     libICE.so.6 => /lib64/libICE.so.6 (0x00007f8f0f779000)
> >     libXxf86vm.so.1 => /lib64/libXxf86vm.so.1 (0x00007f8f0f772000)
> >     libXt.so.6 => /lib64/libXt.so.6 (0x00007f8f0f707000)
> >     libGLX.so.0 => /lib64/libGLX.so.0 (0x00007f8f0f6d3000)
> >     libGLdispatch.so.0 => /lib64/libGLdispatch.so.0 (0x00007f8f0f616000)
> >     libXau.so.6 => /lib64/libXau.so.6 (0x00007f8f0f60f000)
> >     libSM.so.6 => /lib64/libSM.so.6 (0x00007f8f0f604000)
> >     libuuid.so.1 => /lib64/libuuid.so.1 (0x00007f8f0f5fb000)
> >
> > (so lots of things...)
>
> Ok. I'm pretty sure that this is the issue. In particular if qtractor
> loads it.
>
> The solution is to statically link the plugin and hide its symbols
> except for the entry point. Plugins should not depend on any external libs.
>
> The short explanation is that Plugins cannot know about each other, and
> hence must be self-contained.
>
> ---
> Say you write a plugin that needs ffmpeg and uses the newer
> libswresample2 interface, and another author writes a plugin that uses
> the older libswresample1 API. Now you dynamically link both.
>
> Distros may even package both library versions, and you can compile and
> link, but if you load both at the same time in the same host, there is a
> conflict.
>
> [ from
>
> http://lists.ardour.org/pipermail/ardour-users-ardour.org/2018-November/028948.html
> ]
> ---
>
> In your case likely libfftw3f or zita-convolver that conflicts with
> Ardour's use of it, but it could be any lib, including libstdc++ (except
> X11).
>
> Cheers!
> robin
>
>
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