From: Daniel Stenberg <daniel@haxx.se>
Date: Wed, 31 Jul 2024 16:40:44 +0000 (+0200)
Subject: INSTALL.md: MultiSSL and QUIC are mutually exclusive
X-Git-Tag: curl-8_10_0~452
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=65ece771f4602107d9cdd339dff4b420280a2c2e;p=thirdparty%2Fcurl.git

INSTALL.md: MultiSSL and QUIC are mutually exclusive

Reported-by: Matt Jolly
Fixes #14308
Closes #14328
---

diff --git a/docs/INSTALL.md b/docs/INSTALL.md
index d00f22dcb0..c989c37e78 100644
--- a/docs/INSTALL.md
+++ b/docs/INSTALL.md
@@ -154,6 +154,16 @@ conflicting identical symbol names.
 When you build with multiple TLS backends, you can select the active one at
 runtime when curl starts up.
 
+## MultiSSL and HTTP/3
+
+HTTP/3 needs QUIC and QUIC needs TLS. Building libcurl with HTTP/3 and QUIC
+support is not compatible with the MultiSSL feature: they are mutually
+exclusive. If you need MultiSSL in your build, you cannot have HTTP/3 support
+and vice versa.
+
+libcurl can only use a single TLS library with QUIC and that *same* TLS
+library needs to be used for the other TLS using protocols.
+
 ## Configure finding libs in wrong directory
 
 When the configure script checks for third-party libraries, it adds those