diff --git a/configure b/configure
index d76b42fa5a..9e846a75e6 100755
--- a/configure
+++ b/configure
@@ -35055,9 +35055,7 @@ fi
 
 
 if test "$wxUSE_UNICODE" = "yes" -a "$wxUSE_UNICODE_UTF8" = "auto" ; then
-    if test "$TOOLKIT" = "DFB" ; then
-        wxUSE_UNICODE_UTF8=yes
-    elif test "$TOOLKIT" = "GTK" -a "$WXGTK20" = "1" ; then
+    if test "$USE_UNIX" = "1" -a "$wxUSE_DARWIN" != "1" ; then
         wxUSE_UNICODE_UTF8=yes
     elif test "$USE_OS2" = "1" ; then
                                 wxUSE_UNICODE_UTF8=yes
diff --git a/configure.in b/configure.in
index 03f9ebbaa1..adb3ae246c 100644
--- a/configure.in
+++ b/configure.in
@@ -3490,9 +3490,7 @@ dnl ---------------------------------------------------------------------------
 dnl If UTF-8 support wasn't explicitly enabled or disabled, enable it only
 dnl for ports where it makes sense by default (GTK+, DirectFB):
 if test "$wxUSE_UNICODE" = "yes" -a "$wxUSE_UNICODE_UTF8" = "auto" ; then
-    if test "$TOOLKIT" = "DFB" ; then
-        wxUSE_UNICODE_UTF8=yes
-    elif test "$TOOLKIT" = "GTK" -a "$WXGTK20" = "1" ; then
+    if test "$USE_UNIX" = "1" -a "$wxUSE_DARWIN" != "1" ; then
         wxUSE_UNICODE_UTF8=yes
     elif test "$USE_OS2" = "1" ; then
         dnl wide char support is quite incomplete in libc;