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by xdavidliu 793 days ago
> GCC

> CGG (sic) uses .cxx for module files Use -fmodules to use modules.

no it does not. Trying this on Fedora 39 for example, my original comment above already had -fmodules-ts, and when I use -fmodules, g++ errors with

g++: error: unrecognized command-line option ‘-fmodule’; did you mean ‘-Mmodules’?