diff -ru libqalculate-0.9.9.orig/src/qalc.cc libqalculate-0.9.9/src/qalc.cc
--- libqalculate-0.9.9.orig/src/qalc.cc	2016-07-26 14:41:40.000000000 +0200
+++ libqalculate-0.9.9/src/qalc.cc	2016-08-04 18:27:36.553906707 +0200
@@ -3179,7 +3179,9 @@
 		if(!file) {
 			g_free(gstr_file);
 			g_free(gstr_oldfile);
+#ifdef HAVE_LIBREADLINE
 			g_free(historyfile);
+#endif
 			first_time = true;
 			set_saved_mode();
 			return;