@@ -20,11 +20,14 @@
 #include <stdlib.h>
 #include <string.h>
 
 #include <errno.h>
 #include <signal.h>
-#include <unistd.h>
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
 
 #import "OFApplication.h"
 #import "OFString.h"
 #import "OFArray.h"
 #import "OFDictionary.h"