2009/9/18 Simon Loic <simon1l...@gmail.com>

> Hi,
>

Hi Simon,


> I'm new to PythonOcc, and found it very promising. Thanks for the work.
>

Welcome on board!


> However it took me more than 3 days to make it compile and I'm not finished
> yet.
>

Ouch. You should have ask a few questions on this forum earlier, this delay
would have been shortened to 1 day max. I guess the following lines of your
message are related to the compilation of both OCC/GEOM/pythonOCC on Ubuntu
9.04 64 bits. It's actually an excellent news: I've been trying to do the
same under MacOSX Snow Leopard 64 bits (I recently moved from my old
Dell/Windows laptop from a new MacBook Pro). Untill the 0.3 release,
pythonOCC was developed with 32 bits systems, whether they are Windows or
Linux based. The 64 bits compilation require a few hacks over the current
pythonOCC code. I finally got OCC/pythonOCC running with 64 bits support,
but the code is currently only available on the svn repository. The
environment.py and setup.py scripts were modified to enable 64 bits support,
but I still miss a few feedbacks from Win64 and Lin64 users.


> Still I would like to share my experience to make it smoother for new users
> and also for myself to get useful info.
> You may think I am did a lot of crap so that it takes me 3 days!!! Well
> this the story:
> I took support on the wiki page:
> http://www.pythonocc.org/wiki/index.php/Installing_pythonOCC_on_Linux
> and checked out the http://svn.gna.org/svn/pythonocc/tags/0.3 revision of
> pythonOcc.
>
> - As explained, I had to install OCC (1 day of hard struggle until I found
> the pythonOcc wiki page
> http://www.pythonocc.org/wiki/index.php/Installing_OpenCASCADE_on_Linux!<http://www.pythonocc.org/wiki/index.php/Installing_OpenCASCADE_on_Linux%21>
> !)
>

This step normally goes without any problem.

- Then a first missing (or not very clear) info is that you need to have the
> Geom module of Salome installed in order for the compilation to work
> (otherwise you have to specify -NO_GEOM and you get less functionalities)
> - I thought that as only the GEOM module was required I would build it from
> source : Such a huge mistake!!! their building scripts are based on
> automake&co and need tons of environment variable to be specified so as for
> the 3rd party libs to be found!! Actually I didn't make it work, until I
> discovered that they had a hidden script allowing to use CMake. Afterwards
> everything was just pleasure. (this step took me almost 2 days.
>

NO! It's certainly my fault since you took the wrong way, but you MUST NOT
use the GEOM module from Salomé. Salomé is a real mess, and pythonOCC is
based upon the GEOM module extracted from Salomé (and then independant from
it). You MUST download/install rev.175 of the salomegeometry project (
http://sf.net/projects/salomegeometry). It's very easy to get it compile
under Linux (a few minutes). I will upload to the wiki a simple Howto (I
realize it's missing, sorry).


> - Besides, another info was missing in the wiki : one have to set the env
> variable SALOME_GEOM_LIB to the path where to find the GEOM libraries.
> - That's not all, some of the Geom library names seems to have change
> (that's my own explanation for what follows) as I had to change in setup.py
> Sketcher by GEOMSketcher
> GEOMImpl by GEOMimpl (downcase the i)
> Archimede by GEOMArchimede
> - Also, the fact that some headers have been renamed SGEOM_yyy.hxx is a
> problem (i know it was done because of some windows conflicting behaviour)
> because some of the functionalities have become inline (declaration is in
> the header) in the last sources of Salome (5.1.2). So you get some undefined
> reference to XXX::YYY(). As a consequence I had to regenerate cpp wrap files
> (-generate_swig). And actually it's still running, I'm not sure it will
> succeed)
>

Same thing: rather user salomegeometry.


> - Finally, there is a small problem with the environment.py file :
> platform.machine() returns x86_64 which is invalid for g++ -march flag (
> expects "x86-64 apparently).
>

Ok, thanks.


>
> I've attached a file patch.txt, but it's rather a summary of the workaround
> I had to use than a real fix. Maybe some of these problems have been solved
> in the trunk, or are just due to a misunderstanding from me. In this case I
> hope some folks will correct the concerned points. And of course I wish I
> can make it compile finally!!!
> Cheers,
>
>
Regards,


> Loïc
>

Thomas
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