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-rw-r--r--MSVC/readline/undo.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/MSVC/readline/undo.c b/MSVC/readline/undo.c
index 07002da..0e98538 100644
--- a/MSVC/readline/undo.c
+++ b/MSVC/readline/undo.c
@@ -20,7 +20,9 @@
is generally kept in a file called COPYING or LICENSE. If you do not
have a copy of the license, write to the Free Software Foundation,
59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+#ifndef READLINE_LIBRARY
#define READLINE_LIBRARY
+#endif
#include "config.h"