[vtkusers] 64 bit version of vtk

[Charles Law]

Hugo,

I was going to wait for Amy to get back to answer this one, but ...

I believe the VTK_USE_68BIT_IDS flag just changes the definition of 
vtkIdType.  Different computers use different types for 64 bit ints so the 
exact type will vary from system to system.  I do not think it adds any 
extra flags while compiling (i.e. -64 on SGI's).

Charles.


At 10:27 AM 8/31/2001 -0700, Steve Smith wrote:
>Hi,
>
>I have compiled 64 bit under Irix everything worked fine for my
>app.
>
>All I did was add the "-64" option to the compiler flags in user.make:
>
># Add additional CFLAGS and CXXFLAGS for compilation
># uncomment the following two lines to set your own flags
>USER_CFLAGS =  -64 -O
>USER_CXXFLAGS = -64 -O
>
>This is for SGI's compiler.
>
>One word of warning, if you have already compiled a 32 bit version,
>remove the "so_locations" files otherwise the 64 bit libraries get
>mapped to the old 32 bit address space locations and you end up
>not being able to use most of the 64 bit space for data.
>This file seems to indicate the default loading location for the
>shared library.
>
>At least I got bit by this when I first did the 64 bit compile,
>perhaps the latest versions of the compiler update the "so_locations"
>correctly when switching address size.
>
>Steve
>
>
>Hugo Korwaser wrote:
> >
> > Hi,
> >
> > can vtk be compiled for 64 bit addressing on solaris, irix and aix. I
> > noticed a use 64 bit ids in the configure script but not any compiler
> > flags that I recognise.
> >
> > I need this because my application needs to read files over 4Gb on
> > solaris. It seems I need to compile in 64 bit mode to do this. As all
> > the objects and libraries for an executable need to be compiled in the
> > same mode I need a 64 bit version of vtk. Any suggestions welcomed.
> >
> > Regards
> >
> > Hugo
> >
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