Update curl submodule to 7.67.0 (#311)

Author: alexcrichton

.github/workflows/main.yml

@@ -1,5 +1,9 @@
 name: CI
-on: [push, pull_request]
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
 
 jobs:
   test:

curl-sys/build.rs

@@ -171,6 +171,7 @@ fn main() {
         .file("curl/lib/share.c")
         .file("curl/lib/slist.c")
         .file("curl/lib/socks.c")
+        .file("curl/lib/socketpair.c")
         .file("curl/lib/speedcheck.c")
         .file("curl/lib/splay.c")
         .file("curl/lib/strcase.c")
@@ -292,6 +293,7 @@ fn main() {
             .define("HAVE_SEND", None)
             .define("HAVE_SOCKET", None)
             .define("HAVE_STERRROR_R", None)
+            .define("HAVE_SOCKETPAIR", None)
             .define("HAVE_STRUCT_TIMEVAL", None)
             .define("USE_THREADS_POSIX", None)
             .define("RECV_TYPE_ARG2", "void*")

curl-sys/curl

@@ -21,6 +21,7 @@ fn main() {
         .next()
         .and_then(|s| s.parse::<u32>().ok())
         .unwrap_or(10000);
+    println!("got version: {}", version);
 
     if env::var("TARGET").unwrap().contains("msvc") {
         cfg.flag("/wd4574"); // did you mean to use '#if INCL_WINSOCK_API_TYPEDEFS'
@@ -60,6 +61,12 @@ fn main() {
     });
 
     cfg.skip_const(move |s| {
+        if version < 65 {
+            match s {
+                "CURLVERSION_SIXTH" | "CURLVERSION_NOW" => return true,
+                _ => {}
+            }
+        }
         if version < 64 {
             match s {
                 "CURLE_HTTP2" => return true,
@@ -81,7 +88,7 @@ fn main() {
         }
         if version < 60 {
             match s {
-                "CURLVERSION_FIFTH" | "CURLVERSION_SIXTH" | "CURLVERSION_NOW" => return true,
+                "CURLVERSION_FIFTH" => return true,
                 _ => {}
             }
         }