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Sun Oct 1 20:11:12 CEST 2006 · https://mail.python.org/pipermail/python-dev/2006-October/069112.html

On Oct 1, 2006, at 10:54 AM, Ronald Oussoren wrote:

> Hi,
>
> Someone reported on the pythonmac list that HAVE_UINTPTR_T wasn't  
> defined in pyconfig.h while it should have been defined. I'm  
> looking into this and am now wondering whether the configure  
> snipped below is correct:
>
> AC_MSG_CHECKING(for uintptr_t support)
> have_uintptr_t=no
> AC_TRY_COMPILE([], [uintptr_t x; x = (uintptr_t)0;], [
>   AC_DEFINE(HAVE_UINTPTR_T, 1, [Define this if you have the type  
> uintptr_t.])
>   have_uintptr_t=yes
> ])
> AC_MSG_RESULT($have_uintptr_t)
> if test "$have_uintptr_t" = yes ; then
> AC_CHECK_SIZEOF(uintptr_t, 4)
> fi
>
> This seems to check for uintptr_t as a builtin type. Isn't one  
> supposed to include <stdint.h> to get this type?
>
> Chaning the AC_TRY_COMPILE line to the line below fixes the issue  
> for me, but I've only tested on OSX and don't know if this is the  
> right fix for all supported platforms.
>
> AC_TRY_COMPILE([#include <stdint.h>], [uintptr_t x; x = (uintptr_t) 
> 0;], [

The same problem exists on Linux, and is fixed by the same change.

BTW. Python 2.4 suffers from the same problem and I've filed a  
bugreport for this (http://www.python.org/sf/1568842).

Ronald

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[Python-Dev] HAVE_UINTPTR_T test in configure.in