sparse SparseMatrix_distance_matrix: squash warning in release mode

This code triggered a -Wunused-variable warning.

diff --git a/lib/sparse/SparseMatrix.c b/lib/sparse/SparseMatrix.c
index 8a2c6a3059638a9c54d1455695dbaa592394b8e0..9aa52515d8143bb4a585b84c57fbf14d88a2c5a6 100644 (file)
--- a/lib/sparse/SparseMatrix.c
+++ b/lib/sparse/SparseMatrix.c
@@ -2364,6 +2364,7 @@ int SparseMatrix_distance_matrix(SparseMatrix D0, int weighted, double **dist0){
   }
 
   assert(m == n);
+  (void)m;
 
   if (!(*dist0)) *dist0 = gv_calloc(n * n, sizeof(double));
   for (i = 0; i < n*n; i++) (*dist0)[i] = -1;