[Python-Dev] HAVE_UINTPTR_T test in configure.in

[Ronald Oussoren]

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;], [

Ronald

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