Re: perl 5.10.0 / osx 10.5.2 'make' dies at "error: redefinition of 'union semun'"

When I build 5.10.0, I don't have this problem.  In config.h, I have:

#define HAS_UNION_SEMUN /**/

Did you run Configure and does your config.h define HAS_UNION_SEMUN?
--------------------------------------------------------------------------
Edward Moy
Apple Inc.
[email protected]

On Mar 5, 2008, at 10:20 AM, snowcrash+perl wrote:

> i'm building perl 5.10.0 on
>
> 	Darwin Kernel Version 9.2.0: Tue Feb  5 16:15:19 PST 2008;
> root:xnu-1228.3.13~1/RELEASE_PPC
> 	powerpc-apple-darwin9-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5531)
>
>
> currently,
>
> 	make
>
> dies @ "redef of 'union semun'"
>
>
> 	cd /build/perl-5.10.0
> 	make
> 	...
> 	In file included from miniperlmain.c:36:
> 	perl.h:5431: error: redefinition of 'union semun'
> 	make: *** [miniperlmain.o] Error 1
>
>
> looking @ perl.h:5427
> ...
> #ifdef HAS_SEM
> #   include <sys/ipc.h>
> #   include <sys/sem.h>
> #   ifndef HAS_UNION_SEMUN  /* Provide the union semun. */
>    union semun {
>    int     val;
>    struct semid_ds *buf;
>    unsigned short  *array;
>    };
> #   endif
> #   ifdef USE_SEMCTL_SEMUN
> #   ifdef IRIX32_SEMUN_BROKEN_BY_GCC
>            union gccbug_semun {
>        int             val;
>        struct semid_ds *buf;
>        unsigned short  *array;
>        char            __dummy[5];
>        };
> #           define semun gccbug_semun
> #   endif
> #       define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun)
> #   else
> #       ifdef USE_SEMCTL_SEMID_DS
> #           ifdef EXTRA_F_IN_SEMUN_BUF
> #               define Semctl(id, num, cmd, semun) semctl(id, num,
> cmd, semun.buff)
> #           else
> #               define Semctl(id, num, cmd, semun) semctl(id, num,
> cmd, semun.buf)
> #           endif
> #       endif
> #   endif
> #endif
> ...
>
>
> it looks like a HAS_UNION_SEMUN or HAS_SEM needs to be undef'd?
>
> i don't see this issue w/ 5.8.8, so it might be perl-src ...
>
> before I blindly undef/def symbols, can anyone comment/hint on this?
>
> thanks.