Installing Oracle client 10.1.0.3 on Solaris 10 (x86)

When attempting to run Oracle installer for 10.1.0.3 (not sure about other versions), it fails
and a message is returned, something about that it's only certified for Solaris 9 and below.
Also, the installation manual only talks about the operating system patches for Solaris9,
nothing about 10. 

What you have to do is run the installer with -ignoreSysPrereqs option and it will install
normally.

$ ./runInstaller -ignoreSysPrereqs