[flext] Error compiling in release mode

[Santi]

Hello,

i'm developing one external to reading DMX data from Open Lighting
Arquitecture and i think i have an flext issue. The external works
fine compiling in debug mode but when i compile it in release mode PD
crash at object creation with pd: signal 4.

gdb shows:

Program received signal SIGILL, Illegal instruction.
0xb762318b in ?? () from /home/santi/PMS/svn3/externals/ola2pd/ola2pd.pd_linux

Valgrind shows

vex x86->IR: unhandled instruction bytes: 0x66 0xF 0xEF 0xC0
==3566== valgrind: Unrecognised instruction at address 0x4dd9187.
==3566==    at 0x4DD9187: ??? (in
/home/santi/PMS/svn3/externals/ola2pd/ola2pd.pd_linux)
==3566==    by 0x400E048: _dl_init (dl-init.c:134)
==3566==    by 0x4011FFE: dl_open_worker (dl-open.c:542)
==3566==    by 0x400DB55: _dl_catch_error (dl-error.c:178)
==3566==    by 0x4011875: _dl_open (dl-open.c:633)
==3566==    by 0x4087C2A: dlopen_doit (dlopen.c:67)
==3566==    by 0x400DB55: _dl_catch_error (dl-error.c:178)
==3566==    by 0x40880BB: _dlerror_run (dlerror.c:164)
==3566==    by 0x4087B60: dlopen@@GLIBC_2.1 (dlopen.c:88)
==3566==    by 0x80C7E21: ??? (in /usr/bin/puredata)
==3566==    by 0x735F646F: ???

The code is in svn
http://puremediaserver.googlecode.com/svn/trunk/externals/ola2pd
I'm working in Debian Wheezy, flext CVS versión, and Pure Data from
the Debian repositories.
I don't know how continue debugging the external, and if it is
important compile in realease mode, or if debug mode is right to work
with.

Thanks in advance.

Santi.