[parisc-linux] Re: Bug#342545: qt-x11-free FTBFS

[Steve Langasek]

On Thu, Aug 24, 2006 at 09:50:23PM -0400, John David Anglin wrote:

> > This might be a nan bug.  There is one GCC nan fix that's only
> > installed on the trunk:

> > 2006-05-24  John David Anglin  <dave.anglin at nrc-cnrc.gc.ca>

> > 	PR target/27627
> > 	* pa/pa-modes.def: Use mips_single_format, mips_double_format and
> > 	mips_quad_format formats instead of ieee_single_format,
> > 	ieee_double_format and ieee_quad_format formats, respectively.

> Just saw your patch.  Watch out, there are at least two different
> representations for nans.  In GCC, they are called mips and ieee.
> However, as far as I can tell, PA-RISC used the mips format before
> mips.  Both formats are complient with the original IEEE standard,
> so it's also a bit of a misnomer to call the other format the IEEE
> format.

Uh, my patch only attempts to correct for the bad alignment assumptions in
the existing code that cause build failures on hppa; invalid assumptions
about the byte representations of -NaN on particular platforms can be
someone else's problem if and when it becomes an issue. ;)

-- 
Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
vorlon at debian.org                                   http://www.debian.org/
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