Minor configuration items

[Thomas Treichl]

Michael D. Godfrey schrieb:
> I compiled 3.0.1 release and the current development hg
> on my MacBook Pro (10.5.2) laptop and found:
> 
> 1. It was necessary to install the usual "extras."  The main
>     problem with this was that the qhull source does not compile
>     correctly (using gcc 4.3) if the default -O2 option is used.
>     The result is an immediate seq fault in geom.c
>     Removing the option -O2 fixes the problem.
> 
> 2. With all "extras" installed, 3.0.1 compiles and installs without 
> problem. 
>     But the default branch dies when building liboctave.dylib with:
> 
>     ld: duplicate symbol Array<long long>::Array(Array<long long> const&) in
>     pic/Array-so.o and pic/Array-i.o.  
> 
>     This happens with gcc 4.3 and with gcc 4.0.
> 
> Since the problem above is fixed in 3.0.1, it should not be hard to discover
> why it fails in the development branch.  But, if any more information is 
> needed
> please tell me.  Needless to say, both 3.0.1 and devel compile fine on 
> Linux f8.
> 
> Michael Godfrey

Hi Michael,

the (2.) problem currently is there for Mac in the default branch. The solution 
to make linking work again is to comment out

   INSTANTIATE_ARRAY_AND_ASSIGN (std::streamoff, OCTAVE_API);

in Array-so.cc then linking can be done. The discussion about the problem can be 
found here

   https://www.cae.wisc.edu/pipermail/octave-maintainers/2008-April/006836.html

Regards,

   Thomas