cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations strings/strcasecmp_l.c -o strings/strcasecmp_l -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv
strings/strcasecmp_l.c:5:52: error: ‘strcasecmp_l’ undeclared here (not in a function); did you mean ‘strcasecmp’?
    5 | int (*foo)(const char *, const char *, locale_t) = strcasecmp_l;
      |                                                    ^~~~~~~~~~~~
      |                                                    strcasecmp