GNOME Builder is set up to use flatpacks to be able to develop on the latest software versions. The newcomer guide has instructions for how to set this up:
https://wiki.gnome.org/Newcomers
I never used it on RHEL 6 though.
https://wiki.gnome.org/Newcomers
I never used it on RHEL 6 though.
I am not even able to mame changes to gnome-terminator 1XX version because of this.