A first host of Windows fixes from Carlo Bramini
diff --git a/autogen.sh b/autogen.sh
index 2b5b961..cb42321 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -33,6 +33,7 @@
 rm -f depcomp install-sh missing mkinstalldirs
 rm -f stamp-h*
 echo "Running automake"
+touch config.rpath
 automake --add-missing --gnu || fail
 
 # Refresh GNU autotools toolchain: autoconf