Solaris packages for Oracle grid infrastructure installation

Hello guys, I am trying to install oracle grid infrastructure 11.2 on Solaris 5.11.
while I was reading the installation guide to check for the software requirements, there were two packages mentioned for the Solars 5.11. They are as follows

pkg://solaris/developer/build/make
pkg://solaris/developer/assembler

My problem now is, How do I find out if they are installed in the Operating System.
Like the guide says, I used "pkginfo -i" but that only works for the individual packages like

"pkginfo -i SUNWarc SUNWbtool SUNWhea SUNWlibC SUNWlibm SUNWlibms SUNWsprot"

when I try "pkginfo //solaris/developer/build/make" or "pkginfo //solaris/developer/assembler" the command returns the following output

ERROR: information for "//solaris/developer/build/make" was not found

I believe the syntax I am using is worng. I checked the unix forms too, but I couldn't find any proper solution for this.
Can someone please help me out on how to check for those two packages.

Thank You

You should familiarize yourself with software management in Solaris 11. It is quite different from Solaris 10 way of working with packages. Take a look at Command Summary: Basic Operations of the Image Packaging System
To check for the two packages you specified, run this:

pkg info pkg://solaris/developer/build/make pkg://solaris/developer/assembler

Thank You Bartus11.