diff --git a/src/osgPlugins/osgSim/GNUmakefile b/src/osgPlugins/osgSim/GNUmakefile
new file mode 100644
index 000000000..d187d9a72
--- /dev/null
+++ b/src/osgPlugins/osgSim/GNUmakefile
@@ -0,0 +1,16 @@
+TOPDIR = ../../..
+include $(TOPDIR)/Make/makedefs 
+
+CXXFILES =\
+	IO_LightPointNode.cpp\
+	IO_LightPoint.cpp\
+	IO_BlinkSequence.cpp\
+	IO_Sector.cpp
+
+LIBS   += -losgSim $(OSG_LIBS) $(OTHER_LIBS)
+
+TARGET_BASENAME = osgSim
+include $(TOPDIR)/Make/cygwin_plugin_def
+PLUGIN = $(PLUGIN_PREFIX)$(TARGET_BASENAME).$(PLUGIN_EXT)
+
+include $(TOPDIR)/Make/makerules