Uwe Ligges had the same problem with gcc 3.3.1 on SuSE 9.0. So I
installed gcc 3.3.5 from the sources on an i386 box, and was able to
reproduce it.
It is an optimization bug. The crucial code is
xtrunc = tx; /* this prevents trouble with excess FPU */
/* precision on some machines. */
if (xtrunc == xinbta)
goto L_converged;
and both xtrunc and xinbta are volatile. Seems that is being ignored in
3.3.5/1, and so the loop never terminates.
Using an explicit check is safer and faster. I'll put mine in once I have
finished testing.
On Mon, 10 Apr 2006, Dirk Eddelbuettel wrote:
On 10 April 2006 at 14:31, Bjørn-Helge Mevik wrote:
| Dirk Eddelbuettel wrote:
|
| > Fair point, especially as you have to insist on using gcc 3.3.* on Debian:
| > -- 3.3.6 is the current 3.3.* one whereas Bjørn-Helge used 3.3.5
| > -- 3.4.5 is the latest 3.* one supplanting 3.3.(5,6)
| > -- 4.0.3 is the current default
| > -- 4.1.0 is available too
[...]
| Hmmm... I don't `see' all those versions. After an `aptitude update':
(That didn't show version numbers...)
| My /etc/apt/sources.list is:
|
| deb http://ftp.no.debian.org/debian/ sarge main non-free contrib
| deb-src http://ftp.no.debian.org/debian/ sarge main non-free contrib
| deb http://ftp.no.debian.org/debian-non-US sarge/non-US main contrib non-free
| deb-src http://ftp.no.debian.org/debian-non-US sarge/non-US main contrib
non-free
| deb http://security.debian.org/ sarge/updates main contrib non-free
|
| Why am I seeing older versions than you?
Because you point to 'sarge' which was frozen and released a year ago.
If you want something newer than Debian stable, you have to point to it.
This is all off-topic here. Please consider (subscribing and) posting to
r-sig-debian for R/Debian related matters, or debian-help for generic Debian
questions.
Hope this helps, Dirk
--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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