It's an issue if you want different software components to talk to each other without IPC.
Most languages can interoperate with the C abi without commiting you to using the language itself. In fact I can't think of a single language that both produces software people actually use and doesn't interoperate with the c abi.
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Most languages can interoperate with the C abi without commiting you to using the language itself. In fact I can't think of a single language that both produces software people actually use and doesn't interoperate with the c abi.