/opt/IBM/openxlC/17.1.1/bin/ibm-clang -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations unistd/getresuid.c -o unistd/getresuid -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -latomic
unistd/getresuid.c:11:65: error: use of undeclared identifier 'getresuid'; did you mean 'geteuid'?
int (*foo)(uid_t *restrict, uid_t *restrict, uid_t *restrict) = getresuid;
                                                                ^~~~~~~~~
                                                                geteuid
/usr/include/unistd.h:181:23: note: 'geteuid' declared here
extern uid_t _NOTHROW(geteuid, (void));
                      ^
unistd/getresuid.c:11:7: error: incompatible function pointer types initializing 'int (*)(uid_t *restrict, uid_t *restrict, uid_t *restrict)' (aka 'int (*)(unsigned int *restrict, unsigned int *restrict, unsigned int *restrict)') with an expression of type 'uid_t (void)' (aka 'unsigned int (void)') [-Werror,-Wincompatible-function-pointer-types]
int (*foo)(uid_t *restrict, uid_t *restrict, uid_t *restrict) = getresuid;
      ^                                                         ~~~~~~~~~
2 errors generated.