diff --git a/Math/Makefile.am b/Math/Makefile.am
index dc84c65d2..3e2bf95a3 100644
--- a/Math/Makefile.am
+++ b/Math/Makefile.am
@@ -5,7 +5,7 @@ libMath_a_SOURCES = \
 	MAT3inv.c \
 	MAT3mat.c \
 	MAT3vec.c \
-	fg_geodesy.c fg_geodesy.h \
+	fg_geodesy.cxx fg_geodesy.hxx \
 	fg_random.c fg_random.h \
 	interpolater.cxx interpolater.hxx \
 	mat3.h mat3defs.h mat3err.h \
diff --git a/Math/fg_geodesy.c b/Math/fg_geodesy.cxx
similarity index 94%
rename from Math/fg_geodesy.c
rename to Math/fg_geodesy.cxx
index c77c3daec..d334882f4 100644
--- a/Math/fg_geodesy.c
+++ b/Math/fg_geodesy.cxx
@@ -140,6 +140,9 @@ void fgGeodToGeoc( double lat_geod, double alt, double *sl_radius,
 
 $Header$
 $Log$
+Revision 1.1  1998/10/16 19:30:40  curt
+Renamed .c -> .h so we can start adding c++ supporting routines.
+
 Revision 1.6  1998/07/08 14:40:07  curt
 polar3d.[ch] renamed to polar3d.[ch]xx, vector.[ch] renamed to vector.[ch]xx
 Updated fg_geodesy comments to reflect that routines expect and produce
@@ -213,11 +216,14 @@ Initial Flight Gear revision.
 
 
 /* $Log$
-/* Revision 1.6  1998/07/08 14:40:07  curt
-/* polar3d.[ch] renamed to polar3d.[ch]xx, vector.[ch] renamed to vector.[ch]xx
-/* Updated fg_geodesy comments to reflect that routines expect and produce
-/*   meters.
+/* Revision 1.1  1998/10/16 19:30:40  curt
+/* Renamed .c -> .h so we can start adding c++ supporting routines.
 /*
+ * Revision 1.6  1998/07/08 14:40:07  curt
+ * polar3d.[ch] renamed to polar3d.[ch]xx, vector.[ch] renamed to vector.[ch]xx
+ * Updated fg_geodesy comments to reflect that routines expect and produce
+ *   meters.
+ *
  * Revision 1.5  1998/04/25 22:06:23  curt
  * Edited cvs log messages in source files ... bad bad bad!
  *
diff --git a/Math/fg_geodesy.h b/Math/fg_geodesy.hxx
similarity index 92%
rename from Math/fg_geodesy.h
rename to Math/fg_geodesy.hxx
index 874acddd8..714f60a2a 100644
--- a/Math/fg_geodesy.h
+++ b/Math/fg_geodesy.hxx
@@ -94,6 +94,9 @@ void fgGeodToGeoc( double lat_geod, double alt, double *sl_radius,
 
 $Header$
 $Log$
+Revision 1.1  1998/10/16 19:30:42  curt
+Renamed .c -> .h so we can start adding c++ supporting routines.
+
 Revision 1.4  1998/07/08 14:40:08  curt
 polar3d.[ch] renamed to polar3d.[ch]xx, vector.[ch] renamed to vector.[ch]xx
 Updated fg_geodesy comments to reflect that routines expect and produce
@@ -165,11 +168,14 @@ Initial Flight Gear revision.
 
 
 /* $Log$
-/* Revision 1.4  1998/07/08 14:40:08  curt
-/* polar3d.[ch] renamed to polar3d.[ch]xx, vector.[ch] renamed to vector.[ch]xx
-/* Updated fg_geodesy comments to reflect that routines expect and produce
-/*   meters.
+/* Revision 1.1  1998/10/16 19:30:42  curt
+/* Renamed .c -> .h so we can start adding c++ supporting routines.
 /*
+ * Revision 1.4  1998/07/08 14:40:08  curt
+ * polar3d.[ch] renamed to polar3d.[ch]xx, vector.[ch] renamed to vector.[ch]xx
+ * Updated fg_geodesy comments to reflect that routines expect and produce
+ *   meters.
+ *
  * Revision 1.3  1998/04/21 17:03:48  curt
  * Prepairing for C++ integration.
  *