[ofa-general] clueless noob and build probs with 1.2rc2

[James Lentini]

On Tue, 24 Apr 2007, Arlin Davis wrote:

> Roland Dreier wrote:
> 
> > > ./dapl/udapl/linux/dapl_osd.h:82:24: error: asm/atomic.h: No such file or
> > directory
> > > In file included from ./dapl/include/dapl.h:50,
> > >                  from dapl/udapl/dapl_init.c:39:
> > > ./dapl/udapl/linux/dapl_osd.h: In function 'dapl_os_atomic_inc':
> > > ./dapl/udapl/linux/dapl_osd.h:163: warning: implicit declaration of
> > function 'IA64_FETCHADD'
> > 
> > I seem to recall udapl does some very bogus things with <asm/atomic.h>
> > and atomic operations in general.
> >  
> 
> The built-in atomics in gcc had some ia64 issues until gcc 4.1.1 so we had no
> choice but to get down and do some bogus things. :^)
> 
> Turns out Redhat 5 removed asm/atomic.h to force users back to the built-in
> atomics which is fine given that Redhat 5 provides gcc 4.1.1.  We will go back
> and revisit all the hacks. In the short term, for OFED 1.2,  we may have to
> simply add another conditional in the build (configure.in) to handle the
> Redhat 5 case.
> 
> James,  do you have any input here?

No. That is a good summary.