diff --git a/install b/install
index 4e078ee175e20359a51a9c2003d551259e272023..8f15bbbe90151070c9a33ac9a292b2b4508043ab 100755
--- a/install
+++ b/install
@@ -268,6 +268,7 @@ fi
 lin_alg_dir=""
 lin_alg_lib=""
 lin_alg_inc=""
+configure_options="CXX=$CXX $configure_options"
 if [ -d "$i_dir/BOOST" ]; then
     configure_options=" $configure_options --with-boost=$i_dir/BOOST "
 fi