[Issue 6431] [RDMD] Modifying a library doesn't trigger a rebuild

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=6431

--- Comment #7 from Timothee Cour <timothee.cour2 at gmail.com> ---
also:

when adding `pragma(lib, "foo");` in main.d:
(and s/-Llibfoo.a/-lfoo -L./ to make the build succeed), the dependency on lib
foo will appear in both --makedepend, -deps, -v, and the rebuild will happen.

without `pragma(lib, "foo");` in main.d:
the dependency is not caught even if command line mentions -Llibfoo.a or -lfoo
-L.

Is that desired behavior? requiring pragma(lib) seems less flexible

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