From 35a4e169191667f0ca0667fce1787b8667c3d6c6 Mon Sep 17 00:00:00 2001
From: Kenta Kubo <601636+kkebo@users.noreply.github.com>
Date: Fri, 24 Oct 2025 00:32:46 +0900
Subject: [PATCH] Fix build warnings in the workflow for iOS

IMHO, it would be better to use `$(xcrun -f swift)` ("find" mode)
instead of `xcrun swift` ("run" mode).

`xcrun swift` is fine with packages that do not contain
`executableTarget`, but it causes the following errors with packages
that contain `executableTarget`:

```
clang: warning: using sysroot for 'MacOSX' but targeting 'iPhone'
[-Wincompatible-sysroot]
```

To prevent this, we can use `$(xcrun -f swift)` instead of `xcrun
swift`.

Related discussion:
https://forums.swift.org/t/getting-incompatible-sysroot-warning-when-compiling-for-ios-with-sdk-and-target-set/80584
---
 .github/workflows/pull_request.yml       | 2 +-
 .github/workflows/swift_package_test.yml | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index 6870f2a..31e87fb 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -90,7 +90,7 @@ jobs:
       enable_ios_checks: true
       ios_pre_build_command: |
         pwd
-        xcrun swift package init --type library
+        "$(xcrun -f swift)" package init --type library
 
   soundness:
     name: Soundness
diff --git a/.github/workflows/swift_package_test.yml b/.github/workflows/swift_package_test.yml
index 4e1925a..c20daf5 100644
--- a/.github/workflows/swift_package_test.yml
+++ b/.github/workflows/swift_package_test.yml
@@ -110,7 +110,7 @@ on:
       ios_build_command:
         type: string
         description: "macOS command to build the package for iOS"
-        default: "xcrun swift build --build-tests --sdk \"$(xcrun --sdk iphoneos --show-sdk-path)\" --triple arm64-apple-ios"
+        default: "\"$(xcrun -f swift)\" build --build-tests --sdk \"$(xcrun --sdk iphoneos --show-sdk-path)\" --triple arm64-apple-ios"
       linux_build_command:
         type: string
         description: "Linux command to build and test the package"
@@ -255,7 +255,8 @@ jobs:
       - name: Select Xcode
         run: echo "DEVELOPER_DIR=/Applications/Xcode_${{ matrix.xcode_version }}.app" >> $GITHUB_ENV
       - name: Swift version
-        run: xcrun swift --version
+        run: |
+          "$(xcrun -f swift)" --version
       - name: Pre-build
         run: ${{ inputs.ios_pre_build_command }}
       - name: Build