[Pkg-octave-devel] Bug#705485: I believe the issue persists with 3.6.4-3

[Sébastien Villemot]

Le mardi 02 juillet 2013 à 21:24 -0400, Yaroslav Halchenko a écrit :
> Hi Guys,
> 
> unless I am mistaken in the cause here, but psychtoolbox-3 still FTBFS
> under unstable+experimental with exactly the same error as before:

Even though the error is the same than before, the problem is located in
psychtolbox-3, reasons below.

> In file included from /usr/include/octave-3.6.4/octave/mexproto.h:52:0,
>                  from /usr/include/octave-3.6.4/octave/mex.h:67,
>                  from Common/Base/PsychIncludes.h:43,
>                  from Common/Base/PsychConstants.h:36,
>                  from Common/Base/Psych.h:34,
>                  from Common/Base/PsychScriptingGlue.cc:101:
> /usr/include/c++/4.8/cstdlib: In function 'long long int std::abs(long long int)':

The core problem is that Pysch.h includes PsychConstants.h within an
"extern C" block. Transitively, mex.h and mexproto.h are also included
within this block. But mexproto.h includes <cstdlib> (because we're
doing C++), and g++ 4.8 does not like to have a C++ header included
within an "extern C" block.

The solution is therefore not to include mex.h within an "extern C"
block. I let you figure out how to do that best within psychtoolbox-3.

Cheers,

-- 
 .''`.    Sébastien Villemot
: :' :    Debian Developer
`. `'     http://www.dynare.org/sebastien
  `-      GPG Key: 4096R/381A7594

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