cc -pthread  -Wall -Wextra -Werror=implicit-function-declaration netdb/sethostent.c -o netdb/sethostent -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE -lm -lpthread -lrt -lintl -liconv
netdb/sethostent.c: In function ‘main’:
netdb/sethostent.c:10:9: error: implicit declaration of function ‘sethostent’; did you mean ‘setnetent’? [-Wimplicit-function-declaration]
   10 |         sethostent(1);
      |         ^~~~~~~~~~
      |         setnetent
netdb/sethostent.c:12:15: error: implicit declaration of function ‘gethostent’; did you mean ‘getnetent’? [-Wimplicit-function-declaration]
   12 |         if ( !gethostent() && errno )
      |               ^~~~~~~~~~
      |               getnetent