[Issue 18049] dmd -unittest against a library not compiled with -unittest gives undefined symbols

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18049

--- Comment #7 from Rainer Schuetze <r.sagitario at gmx.de> ---
downsides are slower compilation and bloated object files. Should not make a
difference in the size of the executable.

--