issue 4483 - _dbm build failures on systems with gdbm_compat lib.
diff --git a/Modules/_dbmmodule.c b/Modules/_dbmmodule.c
index 1aef3d9..5775511 100644
--- a/Modules/_dbmmodule.c
+++ b/Modules/_dbmmodule.c
@@ -21,6 +21,9 @@
#elif defined(HAVE_GDBM_NDBM_H)
#include <gdbm/ndbm.h>
static char *which_dbm = "GNU gdbm";
+#elif defined(HAVE_GDBM_DASH_NDBM_H)
+#include <gdbm-ndbm.h>
+static char *which_dbm = "GNU gdbm";
#elif defined(HAVE_BERKDB_H)
#include <db.h>
static char *which_dbm = "Berkeley DB";