diff --git a/configure b/configure
index c51975f..cf66360 100755
--- a/configure
+++ b/configure
@@ -4019,7 +4019,6 @@
 ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
-# LT_INIT([enable-static disable-shared])
 
 
     ax_cxx_compile_cxx11_required=falsednl
@@ -4230,6 +4229,8 @@
 
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for boost::shared_ptr" >&5
+$as_echo_n "checking for boost::shared_ptr... " >&6; }
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <boost/shared_ptr.hpp>
diff --git a/configure.ac b/configure.ac
index 8fabf21..8205d9d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -22,6 +22,7 @@
     AC_MSG_RESULT([no])
     AC_DEFINE_UNQUOTED([HAVE_STD_SHARED_PTR], 0, [1 if have the `std::shared_ptr' class.])
 ])
+AC_MSG_CHECKING([for boost::shared_ptr])
 AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
     [[#include <boost/shared_ptr.hpp>]]
     [[boost::shared_ptr<int> have_shared_ptr;]])