SDK • __no_inline_not_in_flash_func gives error

Code:

[build] D:\Dropbox\chess\usb\eval.c:254:5: error: '__no_inline_not_in_flash_func' declared as function returning a function[build]   254 | int __no_inline_not_in_flash_func(eval_dark_pawn)(int sq)[build]       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~[build] D:\Dropbox\chess\usb\eval.c: In function '__no_inline_not_in_flash_func':[build] D:\Dropbox\chess\usb\eval.c:254:5: warning: type of 'eval_dark_pawn' defaults to 'int' [-Wimplicit-int][build] In file included from D:\Dropbox\PicoMite\chess\usb\eval.c:10: