From 9409e8e3d6ca7dff5e41978ec919249fb7dd537a Mon Sep 17 00:00:00 2001
From: Eric Huss <eric@huss.org>
Date: Sun, 4 Nov 2018 16:15:05 -0800
Subject: [PATCH] Support HTTP/2 on static curl-sys on MacOS.

---
 curl-sys/build.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/curl-sys/build.rs b/curl-sys/build.rs
index 9d416f189a..d403466ff7 100644
--- a/curl-sys/build.rs
+++ b/curl-sys/build.rs
@@ -242,6 +242,7 @@ fn main() {
         if cfg!(feature = "ssl") {
             if target.contains("-apple-") {
                 cfg.define("USE_DARWINSSL", None)
+                    .define("HAVE_BUILTIN_AVAILABLE", "1")
                     .file("curl/lib/vtls/darwinssl.c");
             } else {
                 cfg.define("USE_OPENSSL", None)