include unistd.h for isatty()

This commit is contained in:
Fabian Greffrath 2019-12-22 21:33:34 +01:00
parent 37111c9c66
commit 62f1164cbc

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@ -34,6 +34,7 @@ rcsid[] = "$Id: i_system.c,v 1.14 1998/05/03 22:33:13 killough Exp $";
#include <stdarg.h>
#endif
#include <unistd.h> // [FG] isatty()
#include "SDL.h"
#include "z_zone.h"