cc -pthread  -Wall -Wextra -Werror=implicit-function-declaration pthread/pthread_attr_getinheritsched.c -o pthread/pthread_attr_getinheritsched -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE -lm -lpthread -lnetwork -lbsd -latomic
pthread/pthread_attr_getinheritsched.c: In function 'main':
pthread/pthread_attr_getinheritsched.c:14:23: error: implicit declaration of function 'pthread_attr_getinheritsched'; did you mean 'pthread_attr_getguardsize'? [-Werror=implicit-function-declaration]
   14 |         if ( (errno = pthread_attr_getinheritsched(&attr, &inherit)) )
      |                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                       pthread_attr_getguardsize
cc1: some warnings being treated as errors