cc -pthread  -Wall -Wextra -Werror=implicit-function-declaration uchar/mbrtoc16.c -o uchar/mbrtoc16 -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE -lm -lpthread -lnetwork -lbsd -latomic
uchar/mbrtoc16.c: In function 'main':
uchar/mbrtoc16.c:18:25: error: implicit declaration of function 'mbrtoc16'; did you mean 'mbrtoc32'? [-Werror=implicit-function-declaration]
   18 |         size_t amount = mbrtoc16(&c16, str, strlen(str), &ps);
      |                         ^~~~~~~~
      |                         mbrtoc32
cc1: some warnings being treated as errors