Solution : https://service.sap.com/sap/support/notes/521230 (SAP Service marketplace login required)
Key words : 
$oracle_home/ocommon/nls_723/admin/data                $oracle_home/ocommon/nls_733/admin/data                $oracle_home/ocommon/nls_<nlsrel>/admin/data message files, /oracle/client/81x_< bits>/ocommon/nls/                admin/data message files, /oracle/client/92x_< bits>/ocommon/nls/                admin/data message files, nlb/oracle/805_32/ocommon/nls/admin/data/lx00002, nlb/oracle/805_32/ocommon/nls/admin/data/lx00003, /oracle/<oclrel>/ocommon/nls/admin/data message files, $oracle_home/ocommon/nls/admin/data message files, /oracle/805_32/ocommon/nls/admin/data/lx00001, /usr/sap/<sid>/sys/exe/run ora<sid>, directory /usr/sap/<sid>/sys/exe/run -> <librarypath>
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