This is the MinGW cross-compiler for Windows that I found in EPEL.

Alas, no ADA.

"Using this toolchain allows you to build binaries for the following programming languages: C, C++, Objective-C, Objective-C++ and Fortran."

https://fedoraproject.org/wiki/MinGW/Tutorial

I think all of these packages were pulled in the "yum install":

  $ rpm -qa | grep ming | sort
  mingw64-binutils-2.41-3.el9.x86_64
  mingw64-cpp-13.2.1-7.el9.x86_64
  mingw64-crt-11.0.1-3.el9.noarch
  mingw64-filesystem-148-3.el9.noarch
  mingw64-gcc-13.2.1-7.el9.x86_64
  mingw64-headers-11.0.1-3.el9.noarch
  mingw64-libgcc-13.2.1-7.el9.x86_64
  mingw64-winpthreads-11.0.1-3.el9.noarch
  mingw64-winpthreads-static-11.0.1-3.el9.noarch
  mingw-binutils-generic-2.41-3.el9.x86_64
  mingw-filesystem-base-148-3.el9.noarch