[MacPorts] #44647: p5.20-io-tty: fails to build on 10.6

[MacPorts]

#44647: p5.20-io-tty: fails to build on 10.6
---------------------------+--------------------------------
  Reporter:  mojca@…       |      Owner:  macports-tickets@…
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:  snowleopard
      Port:  p5.20-io-tty  |
---------------------------+--------------------------------

Comment (by mojca@…):

 Thank you very much for the pointer.

 I would actually be more inclined towards fixing `util.h` in Perl itself.
 Looking at this:
   * http://stackoverflow.com/questions/6526322/why-redefinition-of-
 typedef-error-with-gcc-4-3-but-not-gcc-4-6
 it makes me suspect that the following definitions in `util.h` are not
 written properly / don't behave well with older compilers:
 {{{
 /* outside the core, perl.h undefs HAS_QUAD if IV isn't 64-bit
    We can't swap this to HAS_QUAD, because the logic here affects the type
 of
    perl_drand48_t below, and that is visible outside of the core.  */
 #if defined(U64TYPE) && !defined(USING_MSVC6)
 /* use a faster implementation when quads are available,
  * but not with VC6 on Windows */
 #    define PERL_DRAND48_QUAD
 #endif

 #ifdef PERL_DRAND48_QUAD

 /* U64 is only defined under PERL_CORE, but this needs to be visible
  * elsewhere so the definition of PerlInterpreter is complete.
  */
 typedef U64TYPE perl_drand48_t;

 #else

 struct PERL_DRAND48_T {
     U16 seed[3];
 };

 typedef struct PERL_DRAND48_T perl_drand48_t;

 #endif

 #define PL_RANDOM_STATE_TYPE perl_drand48_t

 #define Perl_drand48_init(seed) (Perl_drand48_init_r(&PL_random_state,
 (seed)))
 #define Perl_drand48() (Perl_drand48_r(&PL_random_state))
 }}}

 but I'm not yet sure how to fix that either.

 Other than that I don't see any reason not to switch to `PERL_SUBVERSION`
 etc. But it really makes more sense to me to fix Perl's headers.

 The bug report for io-tty is here:
 https://rt.cpan.org/Public/Bug/Display.html?id=96710

-- 
Ticket URL: <https://trac.macports.org/ticket/44647#comment:2>
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