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-rw-r--r--otk/button.cc6
1 files changed, 6 insertions, 0 deletions
diff --git a/otk/button.cc b/otk/button.cc
index 1b2ef7ce..502a226f 100644
--- a/otk/button.cc
+++ b/otk/button.cc
@@ -1,3 +1,9 @@
+// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
+
+#ifdef HAVE_CONFIG_H
+# include "../config.h"
+#endif
+
#include "button.hh"
namespace otk {