- Some compilers need a forward declaration so that the friend clause works

diff --git a/re2c/re.h b/re2c/re.h
index d303bb69050c286543e0dbc0f1a2e2b5b0ff6d79..5908be376944594b4eb2f5b3ead72387a6fa2097 100644 (file)
--- a/re2c/re.h
+++ b/re2c/re.h
@@ -303,6 +303,8 @@ public:
        const RuleOp& op;
 };
 
+RegExp *mkAlt(RegExp*, RegExp*);
+
 class AltOp: public RegExp
 {