diff --git a/Makefile.am b/Makefile.am
index b29fbbc76..f84e74d1e 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,10 +1,11 @@
 SUBDIRS = Include Lib Simulator Tools Tests
 
 EXTRA_DIST = README.Unix README.Linux README.MacOS README.Win32 \
-	README.autoconf README.running Thanks VERSION acsite.m4
+	README.autoconf README.running Thanks VERSION acsite.m4 acconfig.h
 
 dist-hook:
 	tar cf - Hints | (cd $(distdir); tar xvf -)
+	tar cf - Simulator/FDM/JSBsim/aircraft Simulator/FDM/JSBsim/engine | (cd $(distdir); tar xvf -)
 
 
 ##########################################################################
diff --git a/configure.in b/configure.in
index bbd7e7920..e63dfec02 100644
--- a/configure.in
+++ b/configure.in
@@ -320,6 +320,7 @@ AC_OUTPUT( \
 	Tools/Makefile \
 	Tools/Areas/Makefile \
 	Tools/AssemTris/Makefile \
+	Tools/Clipper/Makefile \
 	Tools/DEM/Makefile \
 	Tools/Dem2node/Makefile \
 	Tools/DemInfo/Makefile \
@@ -328,6 +329,7 @@ AC_OUTPUT( \
 	Tools/FixObj/Makefile \
 	Tools/GenAirports/Makefile \
 	Tools/Makedir/Makefile \
+	Tools/ShapeFile/Makefile \
 	Tools/SplitTris/Makefile \
 	Tools/Stripe_w/Makefile \
 	Tools/Tri2obj/Makefile \