cgraph: make 'agflatten_edges' static

This function is not used outside of its containing file. Squashes a
-Wmissing-prototypes warning.

diff --git a/lib/cgraph/flatten.c b/lib/cgraph/flatten.c
index a6906260b8024d169be9d0b9098774b12cbfb4d1..6faf3641d913852abe79f29181b0fd577189b807 100644 (file)
--- a/lib/cgraph/flatten.c
+++ b/lib/cgraph/flatten.c
@@ -17,8 +17,7 @@ static void agflatten_elist(Dict_t * d, Dtlink_t ** lptr, int flag)
     *lptr = dtextract(d);
 }
 
-void agflatten_edges(Agraph_t * g, Agnode_t * n, int flag)
-{
+static void agflatten_edges(Agraph_t *g, Agnode_t *n, int flag) {
     Agsubnode_t *sn;
     Dtlink_t **tmp;