[LAU] non-mixer, Fedora 13 64-bit, issues

Orcan Ogetbil oget.fedora at gmail.com
Fri Aug 27 15:57:56 UTC 2010

On Fri, Aug 27, 2010 at 8:44 AM, Jonathan E. Brickman wrote:
>  I have got non-mixer to compile and run on F13-64.  I had to add
> /lib64/libpthread.so.0 to the LIBS variables in all of the
> makefile.inc's, and /lib64/libdl.so.2 also to the LIBS variable in the
> mixer makefile.inc, and then I had to set LADSPA_PATH, but that's not so
> bad.  What's left is a run-time issue; I don't think non-mixer is
> finding rubberband:
> [jeb at youngdavid mixer]$ non-mixer
> WARNING: File /usr/lib64/ladspa/ladspa-rubberband.cat could not be examined
> dlerror() output:
> /usr/lib64/ladspa/ladspa-rubberband.cat: invalid ELF header
> 130 plugins found in 103 libraries
> [non-mixer] Your fun is over
> [jeb at youngdavid mixer]$
> The rubberband rpm is installed.  Anyone have a suggestion?
First, of all, since you are using x86_64, you have the option of
compiling and using 64 bit or 32 bit non-mixer. Which one is your
choice? In either case, you need to make sure that the libraries that
you are using match the architecture. If you don't do anything fancy
the 64 bit ones will be installed by default.

I am assuming you want the 64bit non-mixer. Make sure that the 64 bit
rubberband is installed
$ rpm -qa |grep rubberband

You can also check if rubberband is installed properly
$ file  /usr/lib64/ladspa/ladspa-rubberband.so
should tell you that the shared library is 64 bit.

If everything seems fine so far and you are still getting "invalid ELF
header" messages for libraries in /usr/lib64/ladspa/, then maybe you
are compiling non-mixer as 32 bit. What does
$ file daw/mixer/src/mixer
tell you?

A couple of hints: remove the @'s from the Makefile so that you can
see what is actually going on. If -m32 is passed to the compiler, that
means you are compiling 32bit.

Also in src/LADSPAInfo.C , I modified the line ~84

and now the mixer works for me without setting any environtment variables.


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