pcp updates - backtrace for pmcd

[Ken McDonell <kenj@xxxxxxxxxxxxxxxx>]

Changes committed to git://oss.sgi.com/kenj/pcp.git dev

 configure                            |    4 +-
 configure.in                         |    2 -
 src/include/pcp/platform_header.h.in |    1 
 src/pmcd/src/pmcd.c                  |   48 ++++++++++++++++++++++++++++++++---
 4 files changed, 48 insertions(+), 7 deletions(-)

commit 8abe02256e47178f47f07ac876b14e0e9f8dd16a
Author: Ken McDonell <kenj@xxxxxxxxxxxxxxxx>
Date:   Wed Jul 31 08:15:29 2013 +1000

    Re-enable procedure call traceback for pmcd
    
    On badness (segv, ...) pmcd will produce a procedure call traceback
    in the logfile if (a) -Ddesperate is specified on the command line (or
    pmcd.control.debug is set equivalently) _and_ (b) the libc/ld run-time
    supports backtracing.
    
    Used to work on Irix.  Now works on glibc based platforms.