Add support for auto-updated version information

The Makefile will now use a script (autoversion.sh) to update
version.h, which in turn defines a VERSION string and gets
included from common.h.

The idea is that version.h normally receives a git-describe
based identifier that represents the current checkout. In
cases where git might not be available, e.g. for builds from
a tarball, the script will instead fall back to a predefined
version (that should reflect the most recent release tag).

Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/common.h b/common.h
index 66ca22e..488d1d4 100644
--- a/common.h
+++ b/common.h
@@ -19,6 +19,8 @@
 
 #include <stddef.h> /* offsetof */
 
+#include "version.h" /* auto-generated VERSION string */
+
 /** flag function argument as unused */
 #ifdef UNUSED
 #elif defined(__GNUC__)