--- xqf-xqf-1.0.6.2/src/Makefile.am
+++ xqf-xqf-1.0.6.2/src/Makefile.am
@@ -41,6 +41,7 @@
 	    $(GEOIP_LIB) \
 	    $(PACKAGE_LIBS) \
 	    $(GDK_PIXBUF_LIBS) \
+	    -lX11 \
 	    -lz -ldl
 
 xqf_LDFLAGS = -Wl,-rpath,$(pkglibdir) -Wl,--export-dynamic -Wl,--version-script=$(top_srcdir)/src/xqf.map