Warning when apply opatch July CPU

Environment: Database 11.2.0.3 on Solaris 11 64bit

I was applying the database July CPU 16742095, but got the following warning message:

[Aug 13, 2013 9:47:48 PM]    2) OUI-67215:
                             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:
                             ld: warning: symbol '_start' has differing types:
                                (file /ebs/patapp/db/tech_st/11.2.0/lib/prod/lib/v9/crt1.o type=FUNC; file /ebs/patapp/db/tech_st/11.2.0/lib//libserver11.a(s
kds.o) type=OBJT);
[Aug 13, 2013 9:47:48 PM]    3) OUI-67215:
                             OPatch found the word "warning" in the stderr of the make command.
                             Please look at this stderr. You can re-run this make command.