diff -dPNur d4x-2.5.7.1-orig/configure d4x-2.5.7.1/configure
--- d4x-2.5.7.1-orig/configure	2017-01-29 09:42:34.000000000 +0100
+++ d4x-2.5.7.1/configure	2017-01-29 09:46:56.947138276 +0100
@@ -18405,7 +18405,7 @@
 # Prepare all requiered flags
 CXXFLAGS="$CXXFLAGS $OS_CXXFLAGS"
 CPPFLAGS="$CPPFLAGS $ESD_CFLAGS $ESD_CFLAGS $GLIB_CFLAGS $GTK_CFLAGS $OS_INCLUDES $AO_CFLAGS $SSL_CFLAGS"
-LIBS="$LIBS $ESD_LIBS $GLIB_LIBS $GTK_LIBS $LIBRX $AO_LIBS $SSL_LIBS"
+LIBS="$LIBS $ESD_LIBS $GLIB_LIBS $GTK_LIBS $LIBRX $AO_LIBS $SSL_LIBS -lX11"
 LDFLAGS="$LDFLAGS $SSL_LDFLAGS"
 
 # Remove duplicates from options
diff -dPNur d4x-2.5.7.1-orig/configure.ac d4x-2.5.7.1/configure.ac
--- d4x-2.5.7.1-orig/configure.ac	2017-01-29 09:47:14.316452900 +0100
+++ d4x-2.5.7.1/configure.ac	2017-01-29 09:42:34.801390253 +0100
@@ -303,7 +303,7 @@
 # Prepare all requiered flags
 CXXFLAGS="$CXXFLAGS $OS_CXXFLAGS"
 CPPFLAGS="$CPPFLAGS $ESD_CFLAGS $ESD_CFLAGS $GLIB_CFLAGS $GTK_CFLAGS $OS_INCLUDES $AO_CFLAGS $SSL_CFLAGS"
-LIBS="$LIBS $ESD_LIBS $GLIB_LIBS $GTK_LIBS $LIBRX $AO_LIBS $SSL_LIBS"
+LIBS="$LIBS $ESD_LIBS $GLIB_LIBS $GTK_LIBS $LIBRX $AO_LIBS $SSL_LIBS -lX11"
 LDFLAGS="$LDFLAGS $SSL_LDFLAGS"
 
 # Remove duplicates from options