Started TWAIN implementation.

Marcus Meissner <marcus@jet.franken.de>
Merged into WineHQ, made sure it works without SANE.

diff --git a/include/config.h.in b/include/config.h.in
index f40a528..a70b862 100644
--- a/include/config.h.in
+++ b/include/config.h.in
@@ -334,6 +334,9 @@
 /* Define if you have the `rfork' function. */
 #undef HAVE_RFORK
 
+/* Define if we have SANE development environment */
+#undef HAVE_SANE
+
 /* Define if you have the <sched.h> header file. */
 #undef HAVE_SCHED_H