-#define DEFLATED 8
-#define INBUFSIZ 0x2000 /* input buffer size */
-#define INBUF_EXTRA 64 /* required by unlzw() */
-#define OUTBUFSIZ 8192 /* output buffer size */
-#define OUTBUF_EXTRA 2048 /* required by unlzw() */
-#define DIST_BUFSIZE 0x2000 /* buffer for distances, see trees.c */
+static const int DEFLATED = 8;
+static const int INBUFSIZ = 0x2000; /* input buffer size */
+static const int INBUF_EXTRA = 64; /* required by unlzw() */
+static const int OUTBUFSIZ = 8192; /* output buffer size */
+static const int OUTBUF_EXTRA = 2048; /* required by unlzw() */
+static const int DIST_BUFSIZE = 0x2000; /* buffer for distances, see trees.c */