Re: Building gdb on IA64 linux

[Jeff Johnston <jjohnstn at redhat dot com>]

Jeff Johnston wrote:
> Steve Ellcey wrote:
>
> > > There is a check in configure.ac: AC_CHECK_HEADERS(libunwind-ia64.h) 
> > > that will set HAVE_LIBUNWIND_IA64_H.  This flag protects the 
> > > references to libunwind macros/functions in ia64-tdep.c.  Did you go 
> > > around this check?
> > >
> > > -- Jeff J.
> >
> >
> >
> > I did not do anything to disable the check, I just let everything
> > default.  I finally noticed that I do have a libunwind, it is over
> > in /usr/local/lib instead of /usr/lib.  That is why I didn't see it
> > before.  I don't see a version number but the latest copyright date
> > is from 2003 so it is probably just too old.
> >
> > Steve Ellcey
> > sje@cup.hp.com
>
> Yes, it is too old.  Red Hat's gdb rpm has a prereq for libunwind, but 
> now that you bring this up, the prereq needs to be updated.  As well, a 
> configure check is needed for regular gdb to ensure the right level of 
> libunwind is around.  I suggest you upgrade to the latest libunwind rpm.

Actually on retrospect, it make more sense to put checks in ia64-tdep.c based on 
libunwind header internals.

-- Jeff J.