When applying PSU 16619892, OPatch completed with errors as below:

Error:

OPatch found the word “warning” in the stderr of the make command.
Please look at this stderr. You can re-run this make command.
Stderr output:
ins_precomp.mk:19: warning: overriding commands for target `pcscfg.cfg’
/u01/app/oracle/product/11.2.0/db/precomp/lib/env_precomp.mk:2160: warning: ignoring old commands for target `pcscfg.cfg’
/u01/app/oracle/product/11.2.0/db/precomp/lib/ins_precomp.mk:19: warning: overriding commands for target `pcscfg.cfg’
/u01/app/oracle/product/11.2.0/db/precomp/lib/env_precomp.mk:2160: warning: ignoring old commands for target `pcscfg.cfg’

OPatch found the word “warning” in the stderr of the make command.

Please look at this stderr. You can re-run this make command.
Stderr output:
ins_emagent.mk:113: warning: overriding commands for target `nmosudo’
ins_emagent.mk:52: warning: ignoring old commands for target `nmosudo’
/u01/app/oracle/product/11.2.0/db/sysman/lib/ins_emagent.mk:113: warning: overriding commands for target `nmosudo’
/u01/app/oracle/product/11.2.0/db/sysman/lib/ins_emagent.mk:52: warning: ignoring old commands for target `nmosudo’
Composite patch 16619892 successfully applied.
OPatch Session completed with warnings.
Log file location: /u01/app/oracle/product/11.2.0/db/cfgtoollogs/opatch/opatch2013-07-22_06-30-02AM_1.log

OPatch completed with warnings.

Solution:

As per Metalink ID:  Opatch warning: overriding commands for target xxxx (Doc ID 1448337.1), we can safely ignore these warnings.