cc -pthread -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations signal/str2sig.c -o signal/str2sig -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt relibc getrlimit(3, 0x7ffffffffc80): not implemented relibc getrlimit(3, 0x7ffffffffbb0): not implemented relibc getrlimit(9, 0x7ffffffffb70): not implemented relibc getrlimit(9, 0x7ffffffffba0): not implemented relibc getrlimit(5, 0x7ffffffffba0): not implemented relibc getrlimit(9, 0x7ffffffffb70): not implemented signal/str2sig.c:5:51: error: 'str2sig' undeclared here (not in a function) 5 | int (*foo)(const char *restrict, int *restrict) = str2sig; | ^~~~~~~