diff -r a0265f621d39 -r d1e1cd94bf49 configure.ac
--- a/configure.ac	Fri May 29 10:35:05 2009 +0100
+++ b/configure.ac	Fri May 29 11:40:53 2009 +0100
@@ -19,6 +19,8 @@
 AC_CONFIG_SRCDIR([lemon/list_graph.h])
 AC_CONFIG_HEADERS([config.h lemon/config.h])
 
+AC_DEFINE([LEMON_VERSION], [lemon_version()], [The version string])
+
 dnl Do compilation tests using the C++ compiler.
 AC_LANG([C++])