diff -up ./Makefile.0000 ./Makefile
--- ./Makefile.0000	2007-08-27 18:27:13.000000000 +0000
+++ ./Makefile	2012-12-29 10:24:25.813960139 +0000
@@ -6,8 +6,8 @@ PREFIX=/usr
 PROFDIR=${PREFIX}/share/onestroke-0.8
 
 CC=gcc
-CFLAGS=-DOS_VERSION=\"${VERSION}\" -DOS_PROFDIR=\"${PROFDIR}\"
-LDFLAGS=`pkg-config --libs gtk+-2.0` -lXtst -lm
+CFLAGS+=-DOS_VERSION=\"${VERSION}\" -DOS_PROFDIR=\"${PROFDIR}\"
+LIBS=`pkg-config --libs gtk+-2.0` -lXtst -lm -lX11
 VERSION=0.8.4
 OBJECTS=osGTK.o osUnix.o onestroke.o
 
@@ -48,6 +52,6 @@ save:
 	tar zcf ~/saves/onestroke-${VERSION}-`date +%m-%d-%Y-%H.%M.%S`.tar.gz *
 
 onestroke: ${OBJECTS}
-	${CC} ${LDFLAGS} ${OBJECTS} -o onestroke
+	${CC} ${OBJECTS} ${LDFLAGS} ${LIBS} -o onestroke
 
 ${OBJECTS}: onestroke.h