[Issue 18046] dmd -unittest doesn't work when linking against a shared library

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18046

David Nadlinger <code at klickverbot.at> changed:

           What    |Removed                     |Added
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                 CC|                            |code at klickverbot.at

--- Comment #2 from David Nadlinger <code at klickverbot.at> ---
(In reply to Timothee Cour from comment #1)
> same with ldmd2:
> 
> ldmd2 -of=build//libfoo.dylib -shared -unittest foo.d
> ldmd2 -unittest -ofbuild/./main -L-lfoo -L-Lbuild/ main2.d foo.d
> build/./main
> 
> ldmd2 --version
> LDC - the LLVM D compiler (1.6.0):
>   based on DMD v2.076.1 and LLVM 5.0.0
>   built with LDC - the LLVM D compiler (0.17.5)

This only occurs when not linking against the shared runtime (druntime/Phobos),
which is a prerequisite for using shared libraries in user code.

Note also that you are compiling foo.d twice, which will be (correctly)
rejected by LDC on startup. (The module collision check has been removed in
druntime master, so you won't be protected against this mistake in the future,
but it's still not what you want.)

After fixing that, LDC gives

u:foo
u:main2

as expected.

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