Problems installing OpenSCAD

Hi all!

First of all I would like to congratulate Clifford Wolf for developing
OpenSCAD. I believe this software is the one that was missing in the
Linux world and have already read great reports on the software.
However I couldn't try it yet but I hope to do it soon. I am running
Ubuntu 9.10 with kernel 2.6.31-16-generic and I have installed OpenSCAD
using the instructions listed in this webpage:
http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Building_on_Linux/UNIX

The first time I tried I got some errors during the process concerning
some GLUT files but then I installed GLUT3 and GLUT3-dev files and the
errors no longer appeared. Then I followed the rest of the process and
finally tried to run OpenSCAD. However, when I type "openscad" in the
console I get the following error:

xxxxxxx@xxxxxxx-laptop:~$ openscad
terminate called after throwing an instance of
'CGAL::Assertion_exception'
  what():  CGAL ERROR: assertion violation!
Expr: -CGAL_IA_MUL(-1.1, 10.1) != CGAL_IA_MUL(1.1, 10.1)
File: /usr/include/CGAL/Interval_nt.h
Line: 154
Explanation: Wrong rounding: did you forget the -frounding-math option
if you use GCC?
Aborted

Can anyone help me with this error?
By the way, I am not a very advanced linux user. It's just my third
month using linux so there's lots of stuff that I don't know yet. But I
learn fast :)

Thank you to everyone in advance!

By the way, merry christmas to all!

With my best regards

Mário Saleiro

Hi,

On Fri, Dec 25, 2009 at 01:04:30PM +0000, Mario Alexandre Nobre Saleiro wrote:
you need to recompile it with -frounding-math (the current development
version does it automatically).

if you can't or won't update to the svn head for some reason you could also
force the use of -frounding-math by adding this line to the end of openscad.pro:

        QMAKE_CXXFLAGS += -frounding-math

and then run "qmake-qt4", "make clean" and "make".

I hope that helps..

yours,
 - clifford

--
"Gee, I wish we had one of those doomsday machines."
 - dr. strangelove, the movie

Hi again,

I have just made what you suggested ant it worked like a charm :D Thank
you very much for your help and congratulations for your work in the
development of OpenSCAD. Hope you have a great 2010!

With my best regards,

Mário Saleiro


Sex, 2009-12-25 às 19:08 +0100, Clifford Wolf escreveu: