Re: Query regarding sizeof long

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On Tue, Jan 24, 2017 at 02:23:13PM +0000, Dibyendu Majumdar wrote:
> Hi
> 
> I am working on porting Sparse to Windows, and I noticed that in
> 64-bit architecture the bits_in_long is set to 64. This is not true
> for Windows where long is 32 bits on a 64-bit machine. I was wondering
> if I just need to set this parameter to 32 or if there are other
> implications that I need to be aware of.

Hi,

If you just change the initial value in target.c, it won't do what you
need because currently, if you compile sparse on a machine where
__x86_64__ is defined, it will automatically enable the -m64 option
which will setup things for an LP64 architecture instead of the LLP64
that you need (inside handle_arch_m64_finalize()).

Ideally, we should have a mean to configure the default value of such
things at building time.

Hope it helps,
Luc 
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