Re: plperl failure on OS X 10.5(.1)

On 21 Nov, 2007, at 10:50 , Tom Lane wrote:

> Brandon Maust <bmaust@u.washington.edu> writes:
>> On 21 Nov, 2007, at 08:39 , Tom Lane wrote:
>>> Seems the question is not so much about OS X as it is about what
>>> perl you're using ...
>
>> it's 5.8.8, as provided by apple (same for gcc, etc):
>
>> perl on OS X does look to be constitutively defining a 'bool' as  
>> _Bool
>> via gcc's stdbool.h, so perhaps this is more of a compiler issue?
>
> No, because I see the identical content in stdbool.h on OS X 10.4
> (perl 5.8.6) and it is not causing a problem here.  Apparently 5.8.8
> is sucking stdbool.h into the compile where 5.8.6 did not.  Can you
> track down just what the inclusion path is?

yes, it is sucking it in (via handy.h), at least in 10.5:

/* XXX Configure ought to have a test for a boolean type, if I can   just figure out all the headers such a test needs.
 Andy Dougherty August 1996
 
*/
/* bool is built-in for g++-2.6.3 and later, which might be used   for extensions.  <_G_config.h> defines _G_HAVE_BOOL,
butwe can't   be sure _G_config.h will be included before this file.  _G_config.h   also defines _G_HAVE_BOOL for both
gccand g++, but only g++   actually has bool.  Hence, _G_HAVE_BOOL is pretty useless for us.   g++ can be identified by
__GNUG__.  Andy Dougherty February 2000
 
*/
#if 1 /* always on Mac OS X */
#  include <stdbool.h>
#  ifndef HAS_BOOL
#    define HAS_BOOL 1
#  endif
#endif

> I'm tempted to fix this with
>
> #ifdef bool
> #undef bool
> #endif
>
> in plperl.h after pulling in the Perl headers.  However, it's not  
> clear
> to me why you aren't seeing warnings about "false" and "true" getting
> redefined, if stdbool.h is really getting included.
>
> For reference, the interesting part of stdbool.h on 10.4 looks like
>
> #define false   0
> #define true    1
>
> #define bool    _Bool
> #if __STDC_VERSION__ < 199901L && __GNUC__ < 3
> typedef int     _Bool;
> #endif
>
> Since this is gcc 3, I suppose that the typedef isn't being used here
> but must get supplied internally by the compiler...

stdbool.h looks the same in 10.5.

--
Brandon