Error while building Orbacus 4.3 on Solaris

Hi ,
I downloaded  a evaluation version of Orbacus 4.3 for Solaris and tried 
to build the code.
I am getting these errors.Can anyone please let me know how to resolve this.
I am using Sun Forte 6U2 compiler on Solaris 2.8 box.

Thanks&Regards,
Bharath
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CC -c -I. -I../../include -I../../../jtc/include  -mt -KPIC  Client.cpp
"./CollocatedClient.h", line 102: Error: Function 
OB::CollocatedClient::send(OB::Downcall*, bool) can throw only the 
exceptions thrown by the function 
OB::DowncallEmitter::send(OB::Downcall*, bool) it overrides.
1 Error(s) detected.
make[3]: *** [Client.o] Error 1
make[3]: Leaving directory 
`/export/home/builder/Orb430/OB-4.3.0-eval/ob/src/library'
make[2]: *** [install] Error 1
make[2]: Leaving directory 
`/export/home/builder/Orb430/OB-4.3.0-eval/ob/src'
make[1]: *** [install] Error 1
make[1]: Leaving directory `/export/home/builder/Orb430/OB-4.3.0-eval/ob'
make: *** [install] Error 1
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