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-rw-r--r--include/ruby/re.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/ruby/re.h b/include/ruby/re.h
index 41b3e49..166f254 100644
--- a/include/ruby/re.h
+++ b/include/ruby/re.h
@@ -58,6 +58,7 @@ long rb_reg_adjust_startpos(VALUE, VALUE, long, int);
void rb_match_busy(VALUE);
VALUE rb_reg_quote(VALUE);
regex_t *rb_reg_prepare_re(VALUE re, VALUE str);
+int rb_reg_region_copy(struct re_registers *, const struct re_registers *);
RUBY_SYMBOL_EXPORT_END