Linker error Error[Lt009]: Inconsistent wchar_t size

[Vitaly]

Hi! I have download nRF5_SDK_14.1.0, and I have IAR Embedded Workbench IDE ARM 8.20.1

I want compile ble_app_eddystone.eww from examples, but have error:

Error[Lt009]: Inconsistent wchar_t size occ_lib_occ_curve25519.c.o(occ_lib_nrf52_iar.a) and 4 other objects have wchar_t size 16 bits aes.o and 74 other objects, some of them in dl7M_tlf.a and 10 other libraries have wchar_t size 32 bits

What is this? What can I do for build this project?

My chip is 52832, workspace is ble_app_eddystone_pca10040_s132.ewp

[Sigurd]

Hi,

SDK 14.1 uses IAR Workbench 7.80.4 for testing and verification. IAR 7.x uses 16 bit wchar_t, but IAR 8.x uses 32 bit wchar_t. More information about this from IAR can be found here.

The SDK contains precompiled libraries, some of which are not open, which are built using IAR 7 with the wchar_t size of 16 bits. Since IAR 8 uses wchar_t size of 32 bits, there is a mismatch between the precompiled libraries and the newly compiled project code, and the build fails. SDK 14.1 is therefore not fully compatible with IAR 8.

[Sigurd]

Is using IAR 7 an option for you?

[Jack Porter]

Hi, I'm having the same problem in January 2020.  IAR 7 is not an option, my company uses IAR 8.  Has this issue ever been resolved ?

[Sigurd]

Hi Jack Porter,

Jack Porter said:

Has this issue ever been resolved ?

 Yes. See the section "Note for IAR 8 users" found in the Introduction for SDK 16.

[Jack Porter]

Great, thank you!