https://issues.dlang.org/show_bug.cgi?id=20587

Adam D. Ruppe <destructionator@gmail.com> changed:

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--- Comment #1 from Adam D. Ruppe <destructionator@gmail.com> ---
Does it work if you do `dmd -defaultlib=libphobos2.so` ?

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https://issues.dlang.org/show_bug.cgi?id=20587

--- Comment #2 from Jonathan Arnold <jarnold@visionable.com> ---
Thanks for the comment but no, doesn't help :(

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https://issues.dlang.org/show_bug.cgi?id=20587

--- Comment #3 from Adam D. Ruppe <destructionator@gmail.com> ---
OK, I know that helps on Linux but not mac I guess :(

will have to wait till someone else gets on.

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https://issues.dlang.org/show_bug.cgi?id=20587

Mathias LANG <pro.mathias.lang@gmail.com> changed:

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--- Comment #4 from Mathias LANG <pro.mathias.lang@gmail.com> ---
Introduced by https://github.com/dlang/druntime/pull/593 The symbol is available on Linux but not OSX.

We can (should) make it available on OSX, because linker errors are not user
friendly.
But even if we make it available on OSX, it is not implemented, so you'll have
better luck calling `dlopen` / `dlsym` directly.

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https://issues.dlang.org/show_bug.cgi?id=20587

--- Comment #5 from Jonathan Arnold <jarnold@visionable.com> ---
Actually, it works on Windows as well. And while linker errors are not, as you say, user friendly, even worse, I think, is to add it but not implement it. Is the fact it only works on Windows (and Linux I guess) documented anywhere?

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https://issues.dlang.org/show_bug.cgi?id=20587

--- Comment #6 from Jonathan Arnold <jarnold@visionable.com> ---
I was having the same error with ldc2 and adding '-link-defaultlib-shared' fixed it:

ldc2 -link-defaultlib-shared tf.d

Is there something similar to that flag for dmd, or is that only for ldc2?

https://github.com/ldc-developers/ldc/issues/3331

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https://issues.dlang.org/show_bug.cgi?id=20587

kinke <kinke@gmx.net> changed:

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--- Comment #7 from kinke <kinke@gmx.net> ---
This is a duplicate of https://issues.dlang.org/show_bug.cgi?id=16391.

*** This issue has been marked as a duplicate of issue 16391 ***

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--- Comment #8 from kinke <kinke@gmx.net> ---
It works for LDC, with shared druntime only (i.e., not with static druntime), because it has proper shared druntime support on Mac too, unlike DMD. It's using a generalized `rt.sections_elf_shared` in druntime for Mac targets. So https://github.com/dlang/druntime/pull/2322 would fix this, but needs compiler support from DMD.

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