sys/stdio: stdio_available is always false with missing stdin module #21040
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Contribution description
If I understand the purpose of the pseudomodule
stdin
correctly, it should describe the fact that the user wants to read from the stdio. If not selected,stdio_available
(which returns the number of bytes available to be read) should thus always return zero.Testing procedure
Wait for @benpicco's take on this. Check for regressions via CI.
Issues/PRs references
Encountered while working on #21039.