x86_64-managarm-gcc -pthread  -Wall -Wextra -Werror=implicit-function-declaration wchar/wcpncpy.c -o wchar/wcpncpy -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE -lm -lpthread -lrt -lintl -liconv
wchar/wcpncpy.c: In function ‘main’:
wchar/wcpncpy.c:13:14: error: implicit declaration of function ‘wcpncpy’; did you mean ‘wcsncpy’? [-Wimplicit-function-declaration]
   13 |         if ( wcpncpy(dst, src, 4) != dst + 4 )
      |              ^~~~~~~
      |              wcsncpy
wchar/wcpncpy.c:13:35: warning: comparison between pointer and integer
   13 |         if ( wcpncpy(dst, src, 4) != dst + 4 )
      |                                   ^~