+#---------------------------------------------------------------------------
+# Global Compile Options
+#
+# You may set FG_CFLAGS to include any of the following options depending on
+# your environment:
+#
+# -g - Compile with debugging symbols
+#
+# -Wall - Enable full compiler warnings
+#
+# -O2 - Enable compiler optimization
+#
+# -DUSE_ITIMER - Use setitimer(), getitimer(), and signal() to mimic
+# a real time system and call the flight model routines
+# at a regular interval, rather than between screen updates
+# which can be highly variable. This can make the flight
+# much smoother.
+#---------------------------------------------------------------------------
+
+FG_CFLAGS = -g -Wall -DUSE_ITIMER
+export FG_CFLAGS
+
+
+#---------------------------------------------------------------------------
+# Uncomment one of the following sections depending on your system
+#
+# You may set FG_GRAPHICS to include any of the following options depending
+# on your environment:
+#---------------------------------------------------------------------------
+
+#---------------------------------------------------------------------------
+# SGI IRIX with the GLUT toolkit
+#
+# INTERFACE_FLAGS = -DGLUT
+# INTERFACE_LIBS = -lglut
+# INTERFACE_FILES = GLUTkey.c
+# GRAPHICS_LIBS = -lGLU -lGL -lXmu -lX11
+#---------------------------------------------------------------------------
+
+#---------------------------------------------------------------------------
+# Linux/Mesa with the GLUT toolkit
+#
+INTERFACE_FLAGS = -DGLUT
+INTERFACE_LIBS = -lglut
+INTERFACE_FILES = GLUTkey.c
+MESA_LIBS = -L/usr/lib/mesa -lMesatk -lMesaaux -lMesaGLU -lMesaGL
+X11_LIBS = -L/usr/X11R6/lib -lXext -lXmu -lXi -lX11
+GRAPHICS_LIBS = $(MESA_LIBS) $(X11_LIBS)
+#---------------------------------------------------------------------------
+
+#---------------------------------------------------------------------------
+# Windows 95/NT with the GLUT toolkit
+#
+# INTERFACE_FLAGS = -DGLUT
+# INTERFACE_LIBS = -lglut
+# INTERFACE_FILES = GLUTkey.c
+# GRAPHICS_LIBS = -lGLU -lGL
+#---------------------------------------------------------------------------
+
+export INTERFACE_FLAGS INTERFACE_LIBS GRAPHICS_LIBS
+
+
+#---------------------------------------------------------------------------
+# You shouldn't need to modify anything beyond this point
+#---------------------------------------------------------------------------
+