I ran into the same problem as other user one year ago (I was using Arduino Studio nad Segger Studio before), now I switched to IAR (as recommended) and as the examples are provided for IAR but lead to linker errors because of the known 16bit (IAR 7) and 32Bit wchar_t size in 8.x.
... of them in dl7M_tlf.a and 12 other libraries have wchar_t size 32 bits
Please provide us also an SDK which can be used also with recent versions of IAR 8.x. A downgrade to 7.x is not possible.
Or provide hints/settings for IAR 8.x how the samples and libs can be used with IAR 8.x.
Here is the problem thread of another user with same issues.
I guess we are not the only ones. Is this solved meanwhile? I have at least not found a solution in the Q &A and forum yet.
https://devzone.nordicsemi.com/f/nordic-q-a/27260/linker-error-error-lt009-inconsistent-wchar_t-size
