As mainframes they probably run some Linux variants. If they don't please explain what exact operating system you use on your HPE nonstop. If they do please explain us what distributions and what Linux kernel version and what executable format, shared libraries etc etc GCC is actually a compiler collection (it accepts several input programming languages) And GCC is ported to Linux running on Intel Xeon. A lot of supercomputers are running Linux on such processors. So I suggest you to: 1. install a Linux distribution on your laptop (my favorite is Debian/Trixie). Don't use a Windows laptop unless your HPE Nonstop operating system is from microsoft. 2. practice on that laptop compiling a recent GCC snapshot. GCC 16 20250831 comes to mind. Be prepared to spend a few days on this task if you never compiled GCC or similar open source software. 3. Compile locally on your Linux laptop some (non-graphical) open source software (maybe a shell) then copy its executable to HPE nonstop and run it there thru ssh. Explain to us what did happen. If HPE Nonstop has some specific to HPE coding rules, tell us more about them, then consider first writing your GCC plugin (it has to be open source and could be inspired from https://arxiv.org/abs/1109.0779 and obsolete code on https://github.com/bstarynk/bismon that you will need to improve and port) Thanks NB: my open source project is an inference engine, RefPerSys and is of course for Linux on x86-64. Coded in C++, GPL licensed, work in progress. -- Basile STARYNKEVITCH <basile@xxxxxxxxxxxxxxxxx> 8 rue de la Faïencerie http://starynkevitch.net/Basile/ 92340 Bourg-la-Reine https://github.com/bstarynk France https://github.com/RefPerSys/RefPerSys
