clang -O2  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations stdio/renameat.c -o stdio/renameat -D_POSIX_C_SOURCE=202405L  -lm  -lintl
stdio/renameat.c:5:52: error: use of undeclared identifier 'renameat'; did you mean 'rename'?
int (*foo)(int, const char *, int, const char *) = renameat;
                                                   ^~~~~~~~
                                                   rename
/usr/include/stdio.h:277:6: note: 'rename' declared here
int      rename (const char *, const char *) __RENAME(__posix_rename);
         ^
stdio/renameat.c:5:7: error: incompatible pointer types initializing 'int (*)(int, const char *, int, const char *)' with an expression of type 'int (const char *, const char *)' [-Werror,-Wincompatible-pointer-types]
int (*foo)(int, const char *, int, const char *) = renameat;
      ^                                            ~~~~~~~~
2 errors generated.