Automatically detect outdated generated files

Update documentation to reflect that automatically generated files are
committed. Detect when they are outdated if we have the ability to
regenerate them.

1 files changed, 2 insertions, 0 deletions

diff --git a/autogen.sh b/autogen.sh
index f6a3afbd..48ac0d37 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,4 +1,6 @@
 #!/bin/sh
+set -e
 aclocal -I m4
 autoheader
 autoconf
+md5sum configure.ac m4/* >| autofiles.sums