Transformation of the GNU Compiler Collection from CentOS Stream 9 (gcc-11.2.1-6.1.el9) into gcc-epel to achieve the missing RPM packages for Ada/GNAT, D/GDC, Go, Objective-C and Objective-C++ that Red Hat decided to remove for Red Hat Enterprise Linux 9 (this change was introduced with RHEL 8 already, see: Considerations in adopting RHEL 8).

Important: Please use gnatgcc, gobjc or gobjc++ rather than gcc for a GCC with Ada/GNAT, Objective-C or Objective-C++ support because gcc is unfortunately not really modular and was also built without support for these programming languages by Red Hat (or a vendor of a 100% bug-for-bug compatible drop-in distribution).