Re: Gentlemen, start your engines...

[Daniel J S. <dan...@ie...>]

Ethan Merritt wrote:
> On Friday 06 October 2006 04:05 pm, Ethan Merritt wrote:
>=20
>>On Sunday 01 October 2006 08:35 am, Hans-Bernhard Br=F6ker wrote:
>>
>>>Everybody should check out a working copy of the branch, and test
>>>that it works as expected, on as many platforms as you can.
>>
>>Digital Unix 4.0D (DECC compiler)
>> - Builds OK, but ...
>> - triggers floating exception in surface1.dem
>>	(Bug #1572268)
>> - triggers floating exception in image.dem when trying to
>>   read deliberately wrong-endian binary data
>>	(maybe we should remove this demo)
>=20
>=20
> Both of these can be cured by adding "-ieee" to the compiler flags.

Interesting.  It probably adds a special handler or limits the exceptions=
 to just those 5 IEEE apparently defines:

http://www.unet.univie.ac.at/aix/aixprggd/genprogc/floating-point_except.=
htm

> What is the correct way to have ./configure figure this out?

DEC bought Apollo at some point.  Is this compilation one with "APOLLO" d=
efined?  Then maybe look for APOLLO in configure.in and at that point add=
 the -ieee to the flags.

Dan