[PATCH] support for mingw-w64

[Ozkan Sezer]

On Fri, Sep 11, 2009 at 4:17 PM, Torbjorn Granlund <tg at gmplib.org> wrote:
> Ozkan Sezer <sezeroz at gmail.com> writes:
>
>  On Fri, Sep 11, 2009 at 3:17 PM, Torbjorn Granlund <tg at gmplib.org> wrote:
>  > Ozkan Sezer <sezeroz at gmail.com> writes:
>  >
>  >  Or, how about doing a AC_CHECK_TYPE(intptr_t, size_t)
>  >  in configure.in?  (I didn't test this one bit, though..)
>  >
>  > That usage of AC_CHECK_TYPE is, I think, obsoleted.  See e.g.,
>  > http://www.gnu.org/software/autoconf/manual/html_node/Obsolete-Macros.html
>  > for how to do this now.  We uise the new methid already in GMP, I think.
>  >
>  > --
>  > Torbjörn
>  >
>
>  Well, one can add
>
>  AC_CHECK_SIZEOF(long long)
>  AC_CHECK_SIZEOF(void*)
>  AC_CHECK_TYPES([intptr_t])
>
>  and then manually do something like
>
>  if test "$ac_cv_type_intptr_t" = "yes"
>
>    intptr_fallback="intptr_t"
>
>  else
>
>    if test "$ac_cv_sizeof_long" = "$ac_cv_sizeof_voidp";then
>      intptr_fallback="long"
>    else
>      if test "$ac_cv_sizeof_long_long" = "$ac_cv_sizeof_voidp";then
>        intptr_fallback="long long"
>      else
>      # crappy fallback
>        intptr_fallback="size_t"
>      fi
>    fi
>
>  fi
>
>  Then, how do we add that to gmp-in.h / gmp.h ? that's
>  where I'm not sure..
>
> gmp.h (as configure) are generated files.
>
> AC_CHECK_* #defines stuff that goes into config.h, which gmp-impl.h then
> should #ifdef/#if and DTRT.  There are several examples if this in GMP
> already, I think.
>
> Note that it is pointless to check intptr_t without stdint.h, so a
> AC_CHECK_TYPES needs to be conditional on the exitence of that.
>

Doable ..

> I'd be lazy and just typedef size_t intptr_t, since I cannot see that
> giving any problems.  perhaps somebody thinks this is not kosher enough.
> But avoiding complexity in GMP is important.
>
> --
> Torbjörn
>

As you wish.  I can try and make a new patch using
gmp_intptr_t, if you want?

--
Ozkan