mark improve_antibandwidth_by_swapping_cheap static

This function is not used outside of its containing file.

diff --git a/cmd/gvmap/country_graph_coloring.c b/cmd/gvmap/country_graph_coloring.c
index 64bf0b291cd5c285438453dcbca891cd710af3b5..2b8a7fb000b4bf4ae04ceefef33c25de1784c86f 100644 (file)
--- a/cmd/gvmap/country_graph_coloring.c
+++ b/cmd/gvmap/country_graph_coloring.c
@@ -126,7 +126,7 @@ static int check_swap(int n, int *ia, int *ja,
   return FALSE;
 }
 
-void improve_antibandwidth_by_swapping_cheap(SparseMatrix A, int *p){
+static void improve_antibandwidth_by_swapping_cheap(SparseMatrix A, int *p){
   /*on entry:
     A: the graph, must be symmetric matrix
     p: a permutation array of length n