Cfrtjryk

I'm (unsuccessfully) trying to get GCC installed on Solaris 11.3 but am running into a lot of issues.
My current issue is that I'm unable to install the package "pkg://solaris/system/header".

Everytime I try to install (pkg install system/header) I get the below error:

    root@Sola:~# pkg install -nv system/header 

    Creating Plan (Solver setup): - pkg install: No matching version of system/header can be installed:    

    Reject:  pkg://solaris/system/header@0.5.11-0.151.0.1

                 to

             pkg://solaris/system/header@11.4-11.4.0.0.1.15.0   

    Reason:  This version is excluded by installed incorporation consolidation/osnet/osnet-incorporation@0.5.11-0.175.3.17.0.5.0

And this also shows that I definitely don't have any "system/header" packages installed:

root@Sola:~# pkg list -fa system/header

NAME (PUBLISHER)                                  VERSION                    IFO

system/header                                     11.4-11.4.0.0.1.15.0       ---

system/header                                     0.5.11-0.175.3.1.0.3.0     ---

system/header                                     0.5.11-0.175.2.0.0.42.2    ---

system/header                                     0.5.11-0.175.1.0.0.24.2    ---

system/header                                     0.5.11-0.175.0.10.1.0.0    ---

system/header                                     0.5.11-0.175.0.0.0.2.1     ---

system/header                                     0.5.11-0.151.0.1           ---

Also here's the "pkg entire" file to show the my system version:

root@Sola:~# pkg info entire

             Name: entire

          Summary: entire incorporation including Support Repository Update (Oracle Solaris 11.3.17.5.0).

      Description: This package constrains system package versions to the same

                   build.  WARNING: Proper system update and correct package

                   selection depend on the presence of this incorporation.

                   Removing this package will result in an unsupported system.

                   For more information see:

                   https://support.oracle.com/rs?type=doc&id=2045311.1

         Category: Meta Packages/Incorporations

            State: Installed

        Publisher: solaris

          Version: 0.5.11 (Oracle Solaris 11.3.17.5.0)

    Build Release: 5.11

           Branch: 0.175.3.17.0.5.0

   Packaging Date: Fri Feb 17 02:04:57 2017

Last Install Time: Sun Mar 12 07:33:24 2017

             Size: 5.46 kB

             FMRI: pkg://solaris/entire@0.5.11,5.11-0.175.3.17.0.5.0:20170217T020457Z

All I need to do is be able to compile some code on this machine.

EDIT:
Thanks for the tip, below is the output from pkg publisher. As mentioned I've been having a lot of trouble trying to install GCC (with similar "incorporation" errors being given), so maybe these issues are related?

root@Sola:~# pkg publisher

PUBLISHER                   TYPE     STATUS P LOCATION

solaris                     origin   online F http://pkg.oracle.com/solaris/release/

EDIT 2:
Is there any (easy) way to somehow standardize the entire system or bring all basic system packages up/down to a standard level where they are all compatible? I'm not sure why it's so difficult to install what I thought would be basic system packages most distro's are normally shipped with :(

Your package repository is pointing to the Solaris 11 release, but the pkg info entire output says your incorporation is from the "Support Repository Update." This would indicate that this system either is or used to be under an Oracle support license. A system under support would normally use the package repository located at https://pkg.oracle.com/solaris/support/ instead of the default http://pkg.oracle.com/solaris/release/.

If the system is still under a support contract, you should be able to setup the support package repository (requires figuring out entitlements and certificates) and get the newest Support Repository Update and then you should be able to install the packages you want.

If this system used to be under a support contract which is no longer available, then you would not have access to any of the packages that match your incorporation, which seems to be the issue you are asking about. You would either have to downgrade to the most recent 11.3 release or upgrade to the current 11.4 release.