Runtime error in Job px calling an external routine

[Umbix62]

Hi

I'm using, for the first time, an external routine written in c Language. I compile it using xlC_r compiler:

xlC_r decode.c -c

The command issued generate the object file "decode.o"

I have created an external routine, "decode", setting:

type "external routine"
object type "object"
library path ...: the path containing the file "decode.o" generated before.

I compile the job calling the routine, adding the LIBPATH env variable set with the path contaning the file "decode.o". The compilation ended without error. So I run the job and Datastage returns this message:

"Transformer_3: Failed to load the library "V0S3_Untitled11_Transformer_3.o"; either the directory containing the library file
is not on the library search path, or the library was compiled on a system
that is incompatible with this system: Could not load "V0S3_Untitled11_Transformer_3": rtld: 0712-001 Symbol Decode__FPcN31 was referenced
from module /opt/IBM/InformationServer/Server/Projects/PR_TGK_QUAL/RT_BP263.O/V0S3_Untitled11_Transformer_3.o(), but a runtime definition
of the symbol was not found.
rtld: 0712-002 fatal error: exiting.."

I have tried to search something in the forum but without receiving an help. How can I resolve this problem?

[chulett]

Did you check to see if the directory containing the library file is on the library search path? That's what the error suggests is the likely problem.

[ray.wurlod]

External routines need to be written in C++, not C.

[chulett]

... and then you'll still have to deal with the library path issue.

[Umbix62]

Hi, I recompile the source as c++ (not c) program and, as Ruy has suggested in his comment, it works now. Craig the libpath is setted correctly. Anyway I have resolved the issue. Than you very much for your help...

Regards

Umberto