From e49190f9f3c2f869bde6bf30cf80426c4c01807a Mon Sep 17 00:00:00 2001
From: Viktor Szakats <commit@vsz.me>
Date: Tue, 31 Mar 2026 03:09:48 +0200
Subject: [PATCH] cf-https-connect: silence `-Wimplicit-int-enum-cast` with
 HTTPS-RR + clang 21 (reapply)

Reapply: e09a7b83d67c56bcb65ef6d0d3c9ba517942fa6d #21057

Also:
- enable HTTPS-RR by default in curl-for-win to test it with clang 21.
  Ref: https://github.com/curl/curl-for-win/commit/dc65c449f313a16279dde7eb243367b77986ddf1

Follow-up to 335dc0e3c59688270140115c9f84ea5c929870d8 #21027

Closes #21167
---
 lib/cf-https-connect.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/cf-https-connect.c b/lib/cf-https-connect.c
index 1d50fba103..f324d5d2c3 100644
--- a/lib/cf-https-connect.c
+++ b/lib/cf-https-connect.c
@@ -350,7 +350,7 @@ static CURLcode cf_hc_resolv(struct Curl_cfilter *cf,
         rr->port == cf->conn->remote_port)) {
       for(i = 0; i < CURL_ARRAYSIZE(rr->alpns) &&
                  alpn_count < CURL_ARRAYSIZE(alpn_ids); ++i) {
-        enum alpnid alpn = rr->alpns[i];
+        enum alpnid alpn = (enum alpnid)rr->alpns[i];
         if(cf_https_alpns_contain(alpn, alpn_ids, alpn_count))
           continue;
         switch(alpn) {