diff -upr aqbanking-5.6.12.orig/configure.ac aqbanking-5.6.12/configure.ac
--- aqbanking-5.6.12.orig/configure.ac	2017-02-13 19:49:41.516482015 +0100
+++ aqbanking-5.6.12/configure.ac	2017-02-13 19:49:50.903347339 +0100
@@ -887,7 +887,7 @@ if test "$OS_TYPE" != "windows"; then
   oldlibs="$LIBS"
   LIBS=""
   AC_SEARCH_LIBS(gettext, intl, [], [HAVE_I18N="no"])
-  i18n_libs="$LIBS"
+  i18n_libs="$LIBS -lintl"
   LIBS="$oldlibs"
 else
   i18n_libs="-lintl"