gvgen makeRandom: squash a 'time_t'→'unsigned' conversion warning

diff --git a/cmd/tools/graph_generator.c b/cmd/tools/graph_generator.c
index b23b51392cfdd25087e9ed74b173aca9df48b4b2..12cbe3e30cdc697a563c016013aaaa4ee62d6948 100644 (file)
--- a/cmd/tools/graph_generator.c
+++ b/cmd/tools/graph_generator.c
@@ -471,7 +471,7 @@ void makeRandom(int h, int w, edgefn ef)
 {
     int i, j, type, size, depth;
 
-    srand(time(0));
+    srand((unsigned)time(0));
     if (rand()%2==1)
        type = 1;
     else