/* ISC license. */ #undef _POSIX_C_SOURCE #undef _XOPEN_SOURCE #ifndef __EXTENSIONS__ #define __EXTENSIONS__ #endif #ifndef _GNU_SOURCE #define _GNU_SOURCE #endif #ifndef _BSD_SOURCE #define _BSD_SOURCE #endif #ifndef _NETBSD_SOURCE #define _NETBSD_SOURCE #endif #ifndef _INCOMPLETE_XOPEN_C063 #define _INCOMPLETE_XOPEN_C063 #endif #include int main (void) { return arc4random_uniform(1) ; }