CGAL users discussion list

["Laurent Rineau (GeometryFactory)" <>]

Le jeudi 03 septembre 2009 18:04:53, 陳 柏宏 a écrit :
> The -arch i386 solved the qt error.
> this is the latest version of qt downloaded fresh from trolltech
>
> however, CGAL no longer compiles with -arch i386 because the rest of the
> libraries(boost, etc) are compiled by macports as x86_64 on os x 10.6
>
> is the only way to solve this is to try to force macports to compile as
> -arch i386 also?

NO!

CONFIG+=x86 was a very strange solution to your original problem, and that 
"solution" will cause a lot of new problems!


I have search 2mn on the web for your compilation error (the one about 
‘toQDRgn’ not declared), and I found out that thread:

  http://thread.gmane.org/gmane.comp.lib.qt.qt4/730

The thread basically says that you must upgrade to XCode>=3.1.2. Then you can 
remove x86 or -arch i386.



 ________________________________
> 寄件者： Laurent Rineau (GeometryFactory) 
> <>
> 收件者： 
> 
> 寄件日期： 2009/9/3(星期四) 上午3:10:18
> 主　旨： Re: [cgal-discuss] QT4 compilation with Mac OS X 10.6
>
> Le jeudi 03 septembre 2009 11:56:18, Laurent Saboret a écrit :
> > 陳 柏宏 a écrit :
> > > Hi,
> > > I am having difficulty compiling CGAL projects with qt4 using Mac OS
> > > 10.6
> > >
> > > I get the error
> > >
> > > /Library/Frameworks/QtGui.framework/Headers/qregion.h: In member
> > > function ‘OpaqueRgnHandle* QRegion::handle(bool) const’:
> > > /Library/Frameworks/QtGui.framework/Headers/qregion.h:158: error:
> > > ‘toQDRgn’ was not declared in this scope
> > >
> > > Searching online yielded a solution that involved adding a
> > > CONFIG += x86
> > > to the .pro file
>
> That is a very strange solution! There must be something wrong in that
> setup! Maybe you should try to upgrade your Qt version, to see if that bug
> has been corrected.
>
> > > CGAL uses cmake though. Is there a way to do the same thing in the
> > > CMakeLists.txt??
> >
> > Try do add -DCGAL_CXX_FLAGS=x86 to cmake arguments (or define
> > CGAL_CXX_FLAGS=x86 in cmake-gui).
>
> Actually, that is "-arch i386" that you need to add to your compiler flags.
> "x86" alone is not a correct compiler flag.


-- 
Laurent Rineau, PhD
Release Manager of the CGAL Project
http://www.cgal.org/
R&D Engineer at GeometryFactory
http://www.geometryfactory.com/