Re: Can I do 64-bit gcc compilation on 64-bit RedHat platform ?

"Shaun Deacon" <sdeacon@fma.fujitsu.com> wrote
> ...can I actually do 64-bit compilation of Tcl/Tk
> with gcc (tcl/tk 8.3.5) ?
>
> The reason I ask is that the configure script
> returns the following warning :
>
> "64bit support being disabled -- don't know magic
> for this platform"
>
> Looking inside the config script, I don't see
> where "-m64" is ever enabled for gcc ?
>
> My system details are:
>
> %> uname -a
> Linux
> dl145-02
> 2.4.21-23.ELsmp
> x86_64
> x86_64
> GNU/Linux
>

The --enable-64bit support is checked in the macros in tcl.m4. I only see
64bit support checks for AIX, HPUX, IRIX, and SunOS-5. Linux on 64 bit AMD
or Intel processors is a relatively new thing, and it isn't supported in
Tcl, yet.

So the answer is "No, you can't compile 64 bit Tcl on Red Hat Enterprise
Linux." I seriously doubt that your commercial application was compiled on
Red Hat Linux with 64bit Tcl. You should be just fine with a regular, 32
bit build.

Bob

-- 
Bob Techentin                   techentin.robert@NOSPAMmayo.edu
Mayo Foundation                                 (507) 538-5495
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