> On 31 Dec 2015, at 12:33 PM, Joe Groff <jgr...@apple.com> wrote:
>
>
>> On Dec 30, 2015, at 1:24 AM, Luke Howard via swift-dev <swift-dev@swift.org
>> <mailto:swift-dev@swift.org>> wrote:
>>
>> Per [SR-404], anything that consumed libFoundation could not dynamically
>> cast to a Foundation protocol because the build script was missing the magic
>> swift.ld linker script to advertise the start of the protocol conformances
>> table.
>
> Is it possible that the library is getting linked by clang instead of swiftc?
> I would expect the swiftc driver to pass the linker script down to ld (but
> maybe it's not).
You’re right, clang is being called to link. Changing to swiftc will be a bit
more intrusive to the Foundation build scripts (at given my mediocre knowledge
of Python) but is probably the right answer.
— Luke
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