Re: [Visualpython-users] which version of boost ist needed?

[Bruce S. <Bru...@nc...>]

I've been mostly successful with both Boost 1.37 and 1.38 but know of 
three issues. Here's the first, which I found in a web search after 
encountering problems trying to build, which seems to be a bug in Boost:

    Furthermore building pyrap with boost-1.37 and gcc-4.3.2 gave an error
    due to a missing include. The following patch has to be applied to 
boost:

    Index: boost/python/detail/translate_exception.hpp
    ===================================================================
    --- boost/python/detail/translate_exception.hpp (revision 50228)
    +++ boost/python/detail/translate_exception.hpp (working copy)
    @@ -9,6 +9,7 @@
 
     # include <boost/call_traits.hpp>
     # include <boost/type_traits/add_const.hpp>
    +# include <boost/type_traits/add_reference.hpp>
 
     # include <boost/function/function0.hpp>
    --------------------------------------

Here's the second issue:

    You also need the threadpool resource: 
sourceforge.net/projects/threadpool.
    If you are using the 1_35_0 Boost libraries, you can use version 
0.2.4 which
    is included in the package (in dependencies). If you use a different 
version
    of the Boost libraries, you need to get an appropriate threadpool 
version and
    replace the files in "dependencies/threadpool/include". Copy into 
the include
    directory the contents of the boost directory in the threadpool package,
    which includes a directory named "include" and a file "threadpool.hpp".

And the third, which I haven't yet figured out. After building Visual 5 
on Ubuntu and Windows, I find that numpy.int32 is not recognized as an 
integer that can be converted when needed as a double. For example,  
vector(int,double,double) is okay, but vector(numpy.int32,double,double) 
fails. This can occur if a vector argument comes from the use of arange, 
and it causes several standard VPython example programs to fail. I've 
been trying to install a manual converter using Boost, but have failed 
so far due to lack of adequate knowledge of Boost.

Bruce Sherwood

Helmut Jarausch wrote:
> Hi,
>
> which version of the boost libraries are needed for visualpython?
>
> On my Gentoo system, the ebuild requires boost-1.35*  which is in
> conflict with other packages.
> Does visualpython have problems with boost-1.37 ?
>
> Many thanks for a hint,
>
> Helmut Jarausch
>
> Lehrstuhl fuer Numerische Mathematik
> RWTH - Aachen University
> D 52056 Aachen, Germany
>
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