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

diff --git a/cmd/tools/graph_generator.c b/cmd/tools/graph_generator.c
index 12cbe3e30cdc697a563c016013aaaa4ee62d6948..9e330b6d7629b57ca7ecdc7e4d237bd7452ee71c 100644 (file)
--- a/cmd/tools/graph_generator.c
+++ b/cmd/tools/graph_generator.c
@@ -774,7 +774,7 @@ makeTreeGen (int N)
     tg->T = genCnt(N);
     tg->sp = mkStack(N+1);
     tg->tp = mkTree(N+1);
-    srand(time(0));
+    srand((unsigned)time(0));
 
     return tg;
 }