1 #ifndef __sig_atomic_t_defined
2 #define __sig_atomic_t_defined 1
3 
4 #include <bits/types.h>
5 
6 /* An integral type that can be modified atomically, without the
7    possibility of a signal arriving in the middle of the operation.  */
8 typedef __sig_atomic_t sig_atomic_t;
9 
10 #endif
11