Squashed 'third_party/eigen/' changes from 61d72f6..cf794d3


Change-Id: I9b814151b01f49af6337a8605d0c42a3a1ed4c72
git-subtree-dir: third_party/eigen
git-subtree-split: cf794d3b741a6278df169e58461f8529f43bce5d
diff --git a/bench/btl/libs/STL/STL_interface.hh b/bench/btl/libs/STL/STL_interface.hh
index 93e76bd..ef4cc92 100644
--- a/bench/btl/libs/STL/STL_interface.hh
+++ b/bench/btl/libs/STL/STL_interface.hh
@@ -44,9 +44,9 @@
     return "STL";
   }
 
-  static void free_matrix(gene_matrix & A, int N){}
+  static void free_matrix(gene_matrix & /*A*/, int /*N*/){}
 
-  static void free_vector(gene_vector & B){}
+  static void free_vector(gene_vector & /*B*/){}
 
   static inline void matrix_from_stl(gene_matrix & A, stl_matrix & A_stl){
     A = A_stl;