sccmap.c: use libc support to define 'INF'

Squashes a -Wconversion warning.

diff --git a/cmd/tools/sccmap.c b/cmd/tools/sccmap.c
index d5dc010d8856f0bea1f265f9703a960e90378f9f..ef13244aee07a5bcb11cd01a06050b3e76bdcb63 100644 (file)
--- a/cmd/tools/sccmap.c
+++ b/cmd/tools/sccmap.c
@@ -21,6 +21,7 @@
  */
 #include "config.h"
 
+#include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #ifdef HAVE_UNISTD_H
@@ -31,7 +32,7 @@
 
 #include <getopt.h>
 
-#define INF ((unsigned int)(-1))
+#define INF UINT_MAX
 
 typedef struct Agraphinfo_t {
     Agrec_t h;