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 -lrt -lintl -liconv
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_getstacksize’? [-Wimplicit-function-declaration]
   14 |         if ( (errno = pthread_attr_getinheritsched(&attr, &inherit)) )
      |                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                       pthread_attr_getstacksize
pthread/pthread_attr_getinheritsched.c:16:25: error: ‘PTHREAD_INHERIT_SCHED’ undeclared (first use in this function)
   16 |         if ( inherit != PTHREAD_INHERIT_SCHED )
      |                         ^~~~~~~~~~~~~~~~~~~~~
pthread/pthread_attr_getinheritsched.c:16:25: note: each undeclared identifier is reported only once for each function it appears in