On 8-Aug-11, at 12:29 PM, Rainer Orth wrote:
John David Anglin <dave.ang...@nrc-cnrc.gc.ca> writes:
I haven't moved two macros used in gthr*.h yet: GTHREAD_USE_WEAK and
SUPPORTS_WEAK. This seems to warrant a separate followup patch,
but for
the record I report my findings:
* GTHREAD_USE_WEAK must be defined explicitly. It needs to be
poisoned
in system.h after the move. Right now, only a few targets defined a
non-default value:
darwin.h #define GTHREAD_USE_WEAK 0
i386/cygwin.h #define GTHREAD_USE_WEAK 0
ia64/hpux.h #define GTHREAD_USE_WEAK 0
pa/pa64-hpux.h #define GTHREAD_USE_WEAK 0
pa/som.h #define GTHREAD_USE_WEAK 0
The last 3 could be handled in a new hpux-lib.h, but perhaps this
isn't necessary if ax_sys_weak_alias.m4 works.
I'm not sure this is possible in general on HP-UX.
Do you suggest that support for weak definitions (undefined weak)
cannot
be detected by a configure test on HP-UX?
Undefined weak support can be detected with a simple link test.
The situation with aliases is more complex.
Dave
