From 2beb72d60b01ea669b400ad87a8f7a788c800e37 Mon Sep 17 00:00:00 2001
From: Honza Dvorsky <honza@apple.com>
Date: Mon, 17 Jul 2023 09:40:53 +0200
Subject: [PATCH 1/2] Disable ExistentialAny temporarily

---
 Package.swift | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/Package.swift b/Package.swift
index 00c3218..ef018de 100644
--- a/Package.swift
+++ b/Package.swift
@@ -15,13 +15,6 @@
 import Foundation
 import PackageDescription
 
-// General Swift-settings for all targets.
-let swiftSettings: [SwiftSetting] = [
-    // https://github.com/apple/swift-evolution/blob/main/proposals/0335-existential-any.md
-    // Require `any` for existential types.
-    .enableUpcomingFeature("ExistentialAny")
-]
-
 let package = Package(
     name: "swift-openapi-urlsession",
     platforms: [
@@ -42,13 +35,11 @@ let package = Package(
             name: "OpenAPIURLSession",
             dependencies: [
                 .product(name: "OpenAPIRuntime", package: "swift-openapi-runtime"),
-            ],
-            swiftSettings: swiftSettings
+            ]
         ),
         .testTarget(
             name: "OpenAPIURLSessionTests",
-            dependencies: ["OpenAPIURLSession"],
-            swiftSettings: swiftSettings
+            dependencies: ["OpenAPIURLSession"]
         ),
     ]
 )

From ce0f944cbc11f196c0a6008065933bf671d7f0c5 Mon Sep 17 00:00:00 2001
From: Honza Dvorsky <honza@apple.com>
Date: Mon, 17 Jul 2023 11:14:38 +0200
Subject: [PATCH 2/2] PR feedback

---
 Package.swift | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/Package.swift b/Package.swift
index ef018de..1e9579e 100644
--- a/Package.swift
+++ b/Package.swift
@@ -15,6 +15,17 @@
 import Foundation
 import PackageDescription
 
+// General Swift-settings for all targets.
+var swiftSettings: [SwiftSetting] = []
+
+#if swift(>=5.9)
+swiftSettings.append(
+    // https://github.com/apple/swift-evolution/blob/main/proposals/0335-existential-any.md
+    // Require `any` for existential types.
+    .enableUpcomingFeature("ExistentialAny")
+)
+#endif
+
 let package = Package(
     name: "swift-openapi-urlsession",
     platforms: [
@@ -35,11 +46,13 @@ let package = Package(
             name: "OpenAPIURLSession",
             dependencies: [
                 .product(name: "OpenAPIRuntime", package: "swift-openapi-runtime"),
-            ]
+            ],
+            swiftSettings: swiftSettings
         ),
         .testTarget(
             name: "OpenAPIURLSessionTests",
-            dependencies: ["OpenAPIURLSession"]
+            dependencies: ["OpenAPIURLSession"],
+            swiftSettings: swiftSettings
         ),
     ]
 )