pyilmbase problems importing imath

Hi

Hope this is the forum to ask.

I'm building pyilmbase 1.0.0 under llinux Centos 6.2, with ilmbase
1.0.3, gcc4.1.2 and boost 1.44.0 (also tried all combinations of
the newer version of pyilmbase 2.0.0/1 against ilmbase 2.0 with
newer compiler gcc446, and several flavours boost.

In all cases I can build successfully and import iex just
fine, but importing imath does SegFault, it does crashed on
line 241 of PyIex.h

240│ const
TypeTranslator<IEX_NAMESPACE::BaseExc>::ClassDesc *baseDesc =
baseExcTranslator().template
findClassDesc<ExcBase>(baseExcTranslator().firstClassDesc());

241├> std::string baseName = baseDesc->typeName();

242│ std::string baseModule = baseDesc->moduleName();

baseDesc ends up with a nullPointer (const
PyIex::TypeTranslator<Iex_2_0::BaseExc>::ClassDesc *) 0x0

As importing iex works fine, I changed the code in
imathmodule.cpp to kind of copy how the Exception gets registered.

<
PyIex::registerExc<Imath::NullVecExc,Iex::MathExc>("NullVecExc","imath");

<
PyIex::registerExc<Imath::NullQuatExc,Iex::MathExc>("NullQuatExc","imath");

<
PyIex::registerExc<Imath::SingMatrixExc,Iex::MathExc>("SingMatrixExc","imath");

<
PyIex::registerExc<Imath::ZeroScaleExc,Iex::MathExc>("ZeroScaleExc","imath");

<
PyIex::registerExc<Imath::IntVecNormalizeExc,Iex::MathExc>("IntVecNormalizeExc","imath");

---

>
PyIex::registerExc<Imath::NullVecExc,Iex::BaseExc>("NullVecExc","iex");

>
PyIex::registerExc<Imath::NullQuatExc,Iex::BaseExc>("NullQuatExc","iex");

>
PyIex::registerExc<Imath::SingMatrixExc,Iex::BaseExc>("SingMatrixExc","iex");

>
PyIex::registerExc<Imath::ZeroScaleExc,Iex::BaseExc>("ZeroScaleExc","iex");

>
PyIex::registerExc<Imath::IntVecNormalizeExc,Iex::BaseExc>("IntVecNormalizeExc","iex");

This way I can import imath, and in python land I can see
that the imath module contains the registered exceptions and
I can raise/try/catch them. but this code change seems fishy since
nothing else seems to have reported and the code in the latest
version remains the same.

I saw someone else did the same change (back in 2012)
https://groups.google.com/forum/#!searchin/alembic-discussion/Cannot$20build$20windows/alembic-discussion/OMOvhg0Nv7o/VnJRrByVv10J

but I'm pretty sure I am missing something more obvious

also it caught my attention that I get this warning on gdb

PyIex::TypeTranslator<Iex_2_0::BaseExc>::findClassDesc<Iex_2_0::MathExc>
(this=0x6e6510, cd=0x6eaa00) at
/scratch/federicon/git/rezExternalPackages/pyilmbase/2.0.0/build/2/pyilmbase-prefix/src/pyilmbase/PyIex/Py

IexTypeTranslator.h:262

(gdb) print cd->typeInfo()

warning: RTTI symbol not found for class
'PyIex::TypeTranslator<Iex_2_0::BaseExc>::ClassDescT<Iex_2_0::BaseExc>'

could it be related to the realtime type info? I made sure that
ilmbase and pyilmbase were compiled wihout the -fno-rtti so it
should be on by default

Hope someone can help me find the issue

Thanks in advance

Fede

_______________________________________________
Openexr-devel mailing list
[email protected]
https://lists.nongnu.org/mailman/listinfo/openexr-devel