Re: Octave fails to build on 64-bit OSX w/ FLTK

[Ben Abbott]

On Feb 3, 2011, at 4:00 AM, Jarno Rajahalme wrote:

> I have reported this before, and I have a better fix that requires a change 
> to FLTK (which I have proposed there), but in the meanwhile this needs to be 
> addressed:
> 
> There is a typedef/Class name clash between OSX system headers and Octave. It 
> seems to me that this SHOULD affect 32-bit builds as well, but I have not 
> tested that.
> 
> OSX header 
> /System/Library/Frameworks/Carbon.framework/Frameworks/HIToolbox.framework/Headers/Lists.h
>  has this:
> 
> typedef Point                           Cell;
> 
> Which breaks Octave class declarations of type "class Cell;" resulting in 
> compile error:
> 
> ./ov.h: At global scope:
> ./ov.h:46: error: using typedef-name ‘Cell’ after ‘class’
> 
> Fortunately the file Lists.h is not needed for using FLTK, at least not for 
> 64-bit builds (*), so this compile error can be avoided by having the 
> following in the CPPFLAGS when calling configure:
> 
> "-D__LISTS__"
> 
> This has the effect of not including the offending OSX include file when 
> building octave. After this the build succeeds (3.3.91), with only the known 
> mapper failure. I compiled with the Apple gcc-4.2, using my blas wrapper 
> library and all other dependencies from macports (compiled with 
> gcc43/gcc44/gcc45).
> 
> At the minimum this should be addressed in README.MacOS
> 
>  Jarno
> 
> (*) Comment from Lists.h:
> 
> /*
> *  List Manager
> *  
> *  Discussion:
> *    The List Manager is deprecated in Mac OS X 10.5 and later, and is
> *    not included in the 64-bit version of HIToolbox. Applications
> *    should use the Data Browser instead of the List Manager.
> */
> typedef Point                           Cell;
> ...

Is there any reason not to include the -D__LISTS__ flag for both 32 and 64bit 
builds?

Regarding README.MacOS, I can add this flag to the CPPFLAGS. If you'd like to 
include some descriptive langauge, can you make a proposal?

Ben