infttrace.c, lin-thread.c, infptrace.c, gnu-nat.c, gdbarch.c,
fork-child.c, command.c: Include "gdb_wait.h" instead of <wait.h>
or <sys/wait.h>.
+ * nindy-share/nindy.c, nindy-share/Onindy.c: Ditto.
* gdb_wait.h: New file. Based on ../include/wait.h. Include
<sys/wait.h> or <wait.h> and then define any missing WIF macros.