[Bug 1607] __RTEMS_SIZEOF_VOID_P__ flawed design

[bugzilla-daemon at rtems.org]

https://www.rtems.org/bugzilla/show_bug.cgi?id=1607

--- Comment #25 from Gedare <giddyup44 at yahoo.com> 2010-07-16 13:03:19 CDT ---
(In reply to comment #13)
> (In reply to comment #12)
> > Let me see if I can sum up the primary issues:
> > 
> > + can't multilib the autoconf output so the use of generated sizeof can't
> >   go in cpukit
> Wrong.
> 
> You MUST NOT put your ___RTEMS_SIZEOF_VOID_P__ into an installed headers.
<snip>
> - autoconf detected values are configure-time detected constants.
> - They are valid only for the CFLAGS having been used at configure-time
> 
> => They are WRONG and INVALID for all other compiler setups (CFLAGS,
> multilibs).
> 
> => The autoconf detected constants may only be used inside of the build-tree
> and must not be explictily exported from the build-tree (== it is wrong to
> install them).
> 
> i.e. there is nothing wrong in using autoconf's SIZEOF_VOIDP during
> compilation, except that you must not export the results in headers.
> 
What are some non-installed headers in which we might be able to place the
macro?  Also, is percpu.h an installed header, and if so does that negate any
approach we might take with autoconf?

-- 
Configure bugmail: https://www.rtems.org/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are watching all bug changes.