[Head/5.3] Build failure on powerpc-aix-4.3.2

[Andrew Cagney]

> GDB fails to build aix-thread.c on our AiX 4.3.2 machine. I think this
> is because aix-thread.c expects lib pthread debug version 2 or 3, while
> we have lib pthread debug version 1 only installed on our 4.3.2 machine.
> 
> By contrast, we have version 3 installed on our AiX 5.1 machine.
> 
> The comment at the begining of aix-thread.c says that it should work on
> 4.3+ systems... Has anybody been able to build it on a 4.3.2 machine?
> Does anybody have something else than version 1 of the pthread debug
> library installed on a 4.3+ system? If you have something else than
> version 1, you should see something like this in
> /usr/include/sys/pthdebug.h:
> 
>      /* The pthread debug library version number.  This is used to maintain
>       * binary compatibility.  The initial release of the pthread debug
>       * library in AIX 4.3.2, represented by PTHDB_VERSION_1, was a
>       * technology only release and binary compatibility with it is not
>       * guaranteed.  It is kept in this file for historical perspective
>       * only.
>       */
>      #define PTHDB_VERSION_1 0xa1c432
>      #define PTHDB_VERSION_2 0xa1c433
>      #define PTHDB_VERSION_3 0xa1c434

Check the bug database (including closed).  I know that people have 
reported problems.  Eg:

http://sources.redhat.com/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gdb&pr=344

Andrew