gcc -Wall -Wextra -o gets gets.c
gets.c: In function ‘main’:
gets.c:17:5: warning: ‘gets’ is deprecated [-Wdeprecated-declarations]
     gets(line);
     ^~~~
In file included from gets.c:11:0:
/usr/include/stdio.h:577:14: note: declared here
 extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
/tmp/cc5H1KMF.o: In function `main':
gets.c:(.text+0x1f): warning: the `gets' function is dangerous and should not be used.
