cc -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  -lgdbm_compat -lintl -lnetwork -lbsd -latomic
sys_mman/posix_typed_mem_open.c: In function 'main':
sys_mman/posix_typed_mem_open.c:18:9: error: implicit declaration of function 'posix_typed_mem_open' [-Werror=implicit-function-declaration]
   18 |         posix_typed_mem_open("", 0, 0);
      |         ^~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors