I have 2 sub-crates in my library - to simplify, lets call them Foo and Bar. Foo wraps a C-api call to foo_ffi: extern "C" { fn foo_ffi(); } pub struct Foo {} impl Foo { pub fn foo_ffi() { #[cfg(not(test))] unsafe { foo_ffi(); } } } Bar calls the …

Cfg(test) doesn't propagate to external crates

vitalyd September 25, 2017, 8:09pm 2

Although you don't control the external crate do you?

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