validlayer: use a C99 bool return type instead of boolean

diff --git a/lib/common/emit.c b/lib/common/emit.c
index 8183eb49ce78d7da765c3ccbb4d8e56b39c9deac..88b7d3cfca7030d247001f459b38953d5ced7668 100644 (file)
--- a/lib/common/emit.c
+++ b/lib/common/emit.c
@@ -1246,7 +1246,7 @@ static void firstlayer(GVJ_t *job, int** listp)
     }
 }
 
-static boolean validlayer(GVJ_t *job)
+static bool validlayer(GVJ_t *job)
 {
     return (job->layerNum <= job->numLayers);
 }