cc -pipe -O   -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations sys_mman/posix_mem_offset.c -o sys_mman/posix_mem_offset -D_POSIX_C_SOURCE=202405L  -lm -lpthread -lrt  -lrt -lcrypt
sys_mman/posix_mem_offset.c:6:94: error: 'posix_mem_offset' undeclared here (not in a function); did you mean 'posix_madvise'?
 int (*foo)(const void *restrict, size_t, off_t *restrict, size_t *restrict, int *restrict) = posix_mem_offset;
                                                                                              ^~~~~~~~~~~~~~~~
                                                                                              posix_madvise