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-rw-r--r--include/ruby/internal/rgengc.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/ruby/internal/rgengc.h b/include/ruby/internal/rgengc.h
index 7ea04442f6..f65595f357 100644
--- a/include/ruby/internal/rgengc.h
+++ b/include/ruby/internal/rgengc.h
@@ -133,6 +133,17 @@
* @private
*
* This is a compile-time flag to enable/disable write barrier for
+ * struct ::RMatch. It has to be set at the time ruby itself compiles. Makes
+ * no sense for 3rd parties.
+ */
+#ifndef RGENGC_WB_PROTECTED_MATCH
+# define RGENGC_WB_PROTECTED_MATCH 1
+#endif
+
+/**
+ * @private
+ *
+ * This is a compile-time flag to enable/disable write barrier for
* struct ::RClass. It has to be set at the time ruby itself compiles. Makes
* no sense for 3rd parties.
*/