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-rw-r--r--include/ruby/ruby.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/ruby/ruby.h b/include/ruby/ruby.h
index 6d82afbc0e..f681f7b4c2 100644
--- a/include/ruby/ruby.h
+++ b/include/ruby/ruby.h
@@ -1037,6 +1037,7 @@ struct rb_data_type_struct {
const rb_data_type_t *parent;
void *data; /* This area can be used for any purpose
by a programmer who define the type. */
+ VALUE flags; /* FL_WB_PROTECTED */
};
#define HAVE_TYPE_RB_DATA_TYPE_T 1