gfio: Add mini library to draw bar graphs and line graphs

Signed-off-by: Stephen M. Cameron <stephenmcameron@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/Makefile b/Makefile
index 8bd6186..9461768 100644
--- a/Makefile
+++ b/Makefile
@@ -68,7 +68,7 @@
 
 OBJS = $(SOURCE:.c=.o)
 FIO_OBJS = $(OBJS) fio.o
-GFIO_OBJS = $(OBJS) gfio.o
+GFIO_OBJS = $(OBJS) gfio.o graph.o tickmarks.o
 
 T_SMALLOC_OBJS = t/stest.o
 T_SMALLOC_OBJS += mutex.o smalloc.o t/log.o
@@ -106,6 +106,9 @@
 gfio.o: gfio.c
 	$(QUIET_CC)$(CC) $(CFLAGS) $(GTK_CFLAGS) $(CPPFLAGS) -c gfio.c
 
+graph.o:	graph.c graph.h
+	$(QUIET_CC)$(CC) $(CFLAGS) $(GTK_CFLAGS) $(CPPFLAGS) -c graph.c
+
 t/stest: $(T_SMALLOC_OBJS)
 	$(QUIET_CC)$(CC) $(LDFLAGS) $(CFLAGS) -o $@ $(T_SMALLOC_OBJS) $(LIBS) $(LDFLAGS)