The armv7em-none-none-eabi/libswiftUnicodeDataTables.a does not link when using the Playdate SDK.
The Playdate SDK link-map disables the following symbols:
__exidx_end
__exidx_start
These appear to be ARM exceptions which were added to swiftUnicodeDataTables through libunwind.
Would it be possible to make a version of swiftUnicodeDataTables with --disable-libunwind-exceptions? I believe that would solve the linking issue.