diff --git a/Math/Makefile b/Math/Makefile
index 34dab00ba..5f9355ffa 100644
--- a/Math/Makefile
+++ b/Math/Makefile
@@ -30,15 +30,12 @@ CFILES = MAT3geom.c MAT3inv.c MAT3mat.c MAT3vec.c
 HFILES = mat3.h mat3defs.h mat3err.h
 OFILES = $(CFILES:.c=.o)
 
-CC = gcc
+
+include ../make.inc
+
+
 CFLAGS = $(FG_CFLAGS)
 
-AR = ar
-
-INCLUDES = 
-
-LIBS = 
-
 
 #---------------------------------------------------------------------------
 # Primary Targets
@@ -49,9 +46,6 @@ $(TARGET): $(OFILES) $(HFILES)
 
 all: $(TARGET)
 
-# depend:
-# 	$(CC) -MM *.c > depend                     
-
 clean:
 	rm -f *.o $(TARGET) lib*.a *~ core
 
@@ -65,6 +59,9 @@ include depend
 
 #---------------------------------------------------------------------------
 # $Log$
+# Revision 1.6  1997/06/27 21:38:14  curt
+# Working on Makefile structure.
+#
 # Revision 1.5  1997/06/27 20:03:40  curt
 # Working on Makefile structure.
 #
diff --git a/Math/depend b/Math/depend
new file mode 100644
index 000000000..85534fccc
--- /dev/null
+++ b/Math/depend
@@ -0,0 +1,4 @@
+MAT3geom.o: MAT3geom.c mat3defs.h mat3.h
+MAT3inv.o: MAT3inv.c mat3defs.h mat3.h
+MAT3mat.o: MAT3mat.c mat3defs.h mat3.h
+MAT3vec.o: MAT3vec.c mat3.h