[Asterisk-video] app_h324m.so: undefined symbol: H324MSessionCreate

[QQ D]

Hi,
I'm having a problem the same as Marcel reported here:
http://lists.digium.com/pipermail/asterisk-video/2007-May/000644.html

Basically when try to loopback h.324m calls, Asterisk repost an error:
==========================
Asterisk Ready.
*CLI>   == Primary D-Channel on span 1 up
    -- Accepting call from '7753851299' to '378454' on channel 0/11, span 1
    -- Executing [378454 at from-pstn:1] Answer("Zap/11-1", "") in new stack
    -- Executing [378454 at from-pstn:2] h324m_loopback("Zap/11-1", "") in new
stack
asterisk: symbol lookup error: /usr/lib/asterisk/modules/app_h324m.so:
undefined symbol: H324MSessionCreate
==========================

It seems like the app_h324m.so is not compiled well with necessary headers
or other linked files. Does anybody elso having the same error? Or am I
missing anything stupid?

Thanks a lot!
Qiao
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