cc -pipe -O   -pthread  -Wall -Wextra -Werror=implicit-function-declaration sys_mman/posix_typed_mem_open.c -o sys_mman/posix_typed_mem_open -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE  -lm -lpthread -lrt  -lrt -lcrypt
sys_mman/posix_typed_mem_open.c: In function 'main':
sys_mman/posix_typed_mem_open.c:18:2: error: implicit declaration of function 'posix_typed_mem_open'; did you mean 'posix_memalign'? [-Werror=implicit-function-declaration]
  posix_typed_mem_open("", 0, 0);
  ^~~~~~~~~~~~~~~~~~~~
  posix_memalign
cc1: some warnings being treated as errors