diff --git a/.gitignore b/.gitignore
index 7d67ea7..01559f4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -62,3 +62,4 @@ po
 *.conf
 *.pdf
 marshal
+libtool
diff --git a/configure.ac b/configure.ac
index 627b94a..13d545a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -40,6 +40,9 @@ AC_CONFIG_AUX_DIR([scripts])
 dnl Recommended for gtk-doc (https://developer.gnome.org/gtk-doc-manual/stable/settingup_autoconf.html.en)
 AC_CONFIG_MACRO_DIR(m4)
 
+dnl Initialize libtool.
+LT_INIT
+
 dnl Compute the canonical host-system type
 AC_CANONICAL_HOST
 
diff --git a/src/terminal/widget.c b/src/terminal/widget.c
index 4a2fe82..64bb1da 100644
--- a/src/terminal/widget.c
+++ b/src/terminal/widget.c
@@ -609,6 +609,10 @@ static void v3270_init(v3270 *widget)
 	// Init accelerators
 	widget->accelerators = v3270_accelerator_map_load_default(NULL);
 
+#ifdef DEBUG
+	lib3270_testpattern(widget->host);
+#endif // DEBUG
+
 }
 
 LIB3270_EXPORT GtkWidget * v3270_new(void)
--
libgit2 0.21.2