x86_64-managarm-gcc -pthread  -Wall -Wextra -Werror=implicit-function-declaration string/strxfrm_l.c -o string/strxfrm_l -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE -lm -lpthread -lrt -lintl -liconv
string/strxfrm_l.c: In function ‘main’:
string/strxfrm_l.c:17:14: error: implicit declaration of function ‘strxfrm_l’; did you mean ‘strxfrm’? [-Wimplicit-function-declaration]
   17 |         if ( strxfrm_l(A, a, sizeof(A), locale) != 7 )
      |              ^~~~~~~~~
      |              strxfrm