| 12345678910111213 | #include <syscall.h>#include <sys/types.h>#include <sys/wait.h>#include <sys/resource.h>/* Wait for a child to die.  When one does, put its status in *STAT_LOC * and return its process ID.  For errors, return (pid_t) -1.  */__pid_t wait (__WAIT_STATUS_DEFN stat_loc){      return wait4 (WAIT_ANY, stat_loc, 0, (struct rusage *) NULL);}
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