Move draw_circle from util.c to gui_util.c

- solidify/util.h, solidify/util.c (draw_circle), solidify/gui_util.h,
  solidify/gui_util.c: moved draw_circle from util.c to gui_util.c
- solidify/util.c: this file is now empty. Remove it.
- solidify/level.c, solidify/overlap.c: include gui_util.h instead of
  util.h
- solidify/Makefile: replace util.o with gui_util.o

solidify/Makefile

@@ -12,8 +12,8 @@
 
 SHELL = /bin/bash
 
-OBJS = array.o face.o histo.o level.o matrix.o overlap.o povray.o project.o \
+OBJS = array.o face.o gui_util.o histo.o level.o matrix.o overlap.o povray.o \
-       solidify.o style.o util.o
+       project.o solidify.o style.o
 
 CFLAGS_WARN = -Wall -Wshadow -Wmissing-prototypes \
 	      -Wmissing-declarations -Wno-format-zero-length

solidify/gui_util.c

@@ -1,5 +1,5 @@
 /*
- * util.c - Common utility functions
+ * gui_util.c - GUI helper functions
  *
  * Written 2010 by Werner Almesberger
  * Copyright 2010 by Werner Almesberger
@@ -13,7 +13,7 @@
 
 #include <gtk/gtk.h>
 
-#include "util.h"
+#include "gui_util.h"
 
 
 void draw_circle(GdkDrawable *da, GdkGC *gc, int x, int y, int r)

solidify/gui_util.h

@@ -0,0 +1,21 @@
+/*
+ * gui_util.h - GUI helper functions
+ *
+ * Written 2009 by Werner Almesberger
+ * Copyright 2009 by Werner Almesberger
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef GUI_UTIL_H
+#define GUI_UTIL_H
+
+#include <gtk/gtk.h>
+
+
+void draw_circle(GdkDrawable *da, GdkGC *gc, int x, int y, int r);
+
+#endif /* !GUI_UTIL_H */

solidify/level.c

@@ -16,9 +16,9 @@
 #include <math.h>
 #include <gtk/gtk.h>
 
-#include "util.h"
 #include "array.h"
 #include "face.h"
+#include "gui_util.h"
 #include "style.h"
 #include "level.h"
 

solidify/overlap.c

@@ -17,9 +17,9 @@
 #include <limits.h>
 #include <gtk/gtk.h>
 
-#include "util.h"
 #include "face.h"
 #include "solid.h"
+#include "gui_util.h"
 #include "style.h"
 #include "overlap.h"
 

solidify/util.h

@@ -15,7 +15,6 @@
 
 #include <stdlib.h>
 #include <string.h>
-#include <gtk/gtk.h>
 
 
 #define alloc_size(s)				\
@@ -32,7 +31,4 @@
 		abort();			\
 	stralloc_tmp; })
 
-
-void draw_circle(GdkDrawable *da, GdkGC *gc, int x, int y, int r);
-
 #endif /* !UTIL_H */