--- glui_v2_2.orig/example1.cpp
+++ glui_v2_2/example1.cpp
@@ -85,7 +85,7 @@
 
 /**************************************** main() ********************/
 
-void main(int argc, char* argv[])
+int main(int argc, char* argv[])
 {
   /****************************************/
   /*   Initialize GLUT and create window  */
@@ -136,6 +136,8 @@
   GLUI_Master.set_glutIdleFunc( myGlutIdle ); 
 
   glutMainLoop();
+  
+  return 0;
 }
 
 
--- glui_v2_2.orig/example2.cpp
+++ glui_v2_2/example2.cpp
@@ -181,7 +181,7 @@
 
 /**************************************** main() ********************/
 
-void main(int argc, char* argv[])
+int main(int argc, char* argv[])
 {
   /****************************************/
   /*   Initialize GLUT and create window  */
@@ -244,4 +244,6 @@
   GLUI_Master.set_glutIdleFunc( myGlutIdle );
 
   glutMainLoop();
+
+  return 0;
 }
--- glui_v2_2.orig/example3.cpp
+++ glui_v2_2/example3.cpp
@@ -263,7 +263,7 @@
 
 /**************************************** main() ********************/
 
-void main(int argc, char* argv[])
+int main(int argc, char* argv[])
 {
   /****************************************/
   /*   Initialize GLUT and create window  */
@@ -392,5 +392,7 @@
 
   /**** Regular GLUT main loop ****/  
   glutMainLoop();
+
+  return 0;
 }
 
--- glui_v2_2.orig/example4.cpp
+++ glui_v2_2/example4.cpp
@@ -253,7 +253,7 @@
 
 /**************************************** main() ********************/
 
-void main(int argc, char* argv[])
+int main(int argc, char* argv[])
 {
   /****************************************/
   /*   Initialize GLUT and create window  */
@@ -371,5 +371,7 @@
   /**** Regular GLUT main loop ****/
   
   glutMainLoop();
+
+  return 0;
 }
 
--- glui_v2_2.orig/example5.cpp
+++ glui_v2_2/example5.cpp
@@ -310,7 +310,7 @@
 
 /**************************************** main() ********************/
 
-void main(int argc, char* argv[])
+int main(int argc, char* argv[])
 {
   /****************************************/
   /*   Initialize GLUT and create window  */
@@ -478,5 +478,7 @@
   /**** Regular GLUT main loop ****/
   
   glutMainLoop();
+
+  return 0;
 }
 
--- glui_v2_2.orig/Makefile
+++ glui_v2_2/Makefile
@@ -0,0 +1,97 @@
+VERSION  = 2.2
+MAJOR    = 2
+LIBNAME  = libglui
+SONAME   = $(LIBNAME).so.$(MAJOR)
+
+CC       = cc
+CXX      = c++
+
+CPPFLAGS = $(INCS)
+CFLAGS   =
+CXXFLAGS =
+LDFLAGS  =
+LDLIBS   = $(LIBS)
+
+GLLIBS   = -lGL -lGLU -lglut
+INCS     = 
+LIBS     = $(GLLIBS) -lm
+
+LIBGLUI  = -Llib -lglui
+
+GLUI     = lib/$(LIBNAME).a
+SO_GLUI  = lib/$(LIBNAME).so.$(VERSION)
+
+EXAMPLES = bin/example1 bin/example2 bin/example3 bin/example4 bin/example5
+
+all: static shared examples
+static: $(GLUI)
+shared: $(SO_GLUI)
+examples: $(EXAMPLES)
+
+GLUI_SRCS = algebra3.cpp arcball.cpp $(wildcard glui*.cpp) quaternion.cpp
+GLUI_OBJS = $(GLUI_SRCS:.cpp=.o)
+
+$(GLUI): $(GLUI_OBJS)
+	@echo "Creating library"
+	test -d $(dir $@) || mkdir -p $(dir $@)
+	ar -r $@ $^
+
+$(SO_GLUI): $(GLUI_OBJS)
+	@echo "Creating shared library"
+	$(CXX) -o $@ -shared -Wl,-soname,$(SONAME) $^ $(LDLIBS)
+
+bin/example%: example%.o $(GLUI)
+	@echo Linking $(notdir $@)
+	test -d $(dir $@) || mkdir -p $(dir $@)
+	$(CXX) $(LDFLAGS) $(LDLIBS) $< $(LIBGLUI) -o $@
+
+.cpp.o:
+	$(CXX) -c $(CXXFLAGS) $(CPPFLAGS) $(INCS) $<
+
+.c.o:
+	$(CC) -c $(CFLAGS) $(CPPFLAGS) $(INCS) $<
+
+clean:
+	$(RM) *.o
+	$(RM) -r bin libs
+	$(RM) tags *~
+
+.SUFFIXES: .cpp
+.PHONY: all static shared examples
+
+algebra3.o: algebra3.h
+arcball.o: arcball.h algebra3.h quaternion.h
+example1.o: glui.h
+example2.o: glui.h
+example3.o: glui.h
+example4.o: glui.h
+glui.o: glui.h
+glui_add_controls.o: glui.h
+glui_bitmap_img_data.o: glui_img_checkbox_0.c glui_img_checkbox_1.c
+glui_bitmap_img_data.o: glui_img_radiobutton_0.c glui_img_radiobutton_1.c
+glui_bitmap_img_data.o: glui_img_uparrow.c glui_img_downarrow.c
+glui_bitmap_img_data.o: glui_img_leftarrow.c glui_img_rightarrow.c
+glui_bitmap_img_data.o: glui_img_spinup_1.c glui_img_spinup_0.c
+glui_bitmap_img_data.o: glui_img_spindown_1.c glui_img_spindown_0.c
+glui_bitmap_img_data.o: glui_img_checkbox_0_dis.c glui_img_checkbox_1_dis.c
+glui_bitmap_img_data.o: glui_img_radiobutton_0_dis.c
+glui_bitmap_img_data.o: glui_img_radiobutton_1_dis.c glui_img_spinup_dis.c
+glui_bitmap_img_data.o: glui_img_spindown_dis.c
+glui_bitmaps.o: glui.h
+glui_button.o: glui.h
+glui_checkbox.o: glui.h
+glui_column.o: glui.h
+glui_control.o: glui.h
+glui_edittext.o: glui.h
+glui_node.o: glui.h
+glui_panel.o: glui.h
+glui_radio.o: glui.h
+glui_separator.o: glui.h
+glui_spinner.o: glui.h
+glui_statictext.o: glui.h
+quaternion.o: quaternion.h algebra3.h
+glui_translation.o: glui.h
+glui_rotation.o: glui.h
+glui_mouse_iaction.o: glui.h
+glui_listbox.o: glui.h
+glui_rollout.o: glui.h