Fix CI: add explicit xcodebuild destinations and update Xcode matrix (#1594)

- Add explicit -destination flags to build.sh — newer Xcode versions no
  longer auto-select a build destination, causing "Found no destinations
  for the scheme" errors
- Update CI matrix to Xcode 16.4 and 26.2 — Xcode 16.0-16.3 simulator
  runtimes are no longer installed on the macos-15 runner image
- Add PRODUCT_BUNDLE_IDENTIFIER to ExternalTarget fixture — Xcode 26.x
  requires a bundle identifier for embedded frameworks

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: yonaskolb

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
     name: Xcode ${{ matrix.xcode }}
     strategy:
       matrix:
-        xcode: ["16.0", "16.3"]
+        xcode: ["16.4", "26.2"]
     env:
       DEVELOPER_DIR: /Applications/Xcode_${{ matrix.xcode }}.app/Contents/Developer
     steps:

Tests/Fixtures/TestProject/AnotherProject/AnotherProject.xcodeproj/project.pbxproj

@@ -342,6 +342,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.project.external;
 				SDKROOT = iphoneos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = "1,2";
@@ -452,6 +453,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.project.external;
 				SDKROOT = iphoneos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = "1,2";
@@ -474,6 +476,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.project.external;
 				SDKROOT = iphoneos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = "1,2";
@@ -496,6 +499,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.project.external;
 				SDKROOT = iphoneos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = "1,2";
@@ -657,6 +661,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.project.external;
 				SDKROOT = iphoneos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = "1,2";
@@ -703,6 +708,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.project.external;
 				SDKROOT = iphoneos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = "1,2";

Tests/Fixtures/TestProject/AnotherProject/project.yml

@@ -20,6 +20,7 @@ targets:
     platform: iOS
     settings:
       GENERATE_INFOPLIST_FILE: YES
+      PRODUCT_BUNDLE_IDENTIFIER: com.project.external
   IncludedLegacy:
     type: ""
     platform: iOS

Tests/Fixtures/TestProject/Project.xcodeproj/project.pbxproj

@@ -3522,7 +3522,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.project.ExternalTarget;
+				PRODUCT_BUNDLE_IDENTIFIER = com.project.external;
 				SDKROOT = iphoneos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = "1,2";
@@ -4220,7 +4220,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.project.ExternalTarget;
+				PRODUCT_BUNDLE_IDENTIFIER = com.project.external;
 				SDKROOT = iphoneos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = "1,2";
@@ -6058,7 +6058,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.project.ExternalTarget;
+				PRODUCT_BUNDLE_IDENTIFIER = com.project.external;
 				SDKROOT = iphoneos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = "1,2";
@@ -6655,7 +6655,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.project.ExternalTarget;
+				PRODUCT_BUNDLE_IDENTIFIER = com.project.external;
 				SDKROOT = iphoneos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = "1,2";
@@ -6856,7 +6856,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.project.ExternalTarget;
+				PRODUCT_BUNDLE_IDENTIFIER = com.project.external;
 				SDKROOT = iphoneos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = "1,2";
@@ -7259,7 +7259,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.project.ExternalTarget;
+				PRODUCT_BUNDLE_IDENTIFIER = com.project.external;
 				SDKROOT = iphoneos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = "1,2";

Tests/Fixtures/TestProject/build.sh

@@ -3,10 +3,10 @@ set -e
 
 echo "
 ⚙️ Building iOS app"
-xcodebuild -quiet -workspace Workspace.xcworkspace -scheme "App_iOS Test" -configuration "Test Debug" -xcconfig fixtures.xcconfig
+xcodebuild -quiet -workspace Workspace.xcworkspace -scheme "App_iOS Test" -configuration "Test Debug" -xcconfig fixtures.xcconfig -destination 'generic/platform=iOS Simulator'
 echo "✅ Successfully built iOS app"
 
 echo "
 ⚙️ Building macOS app"
-xcodebuild -quiet -workspace Workspace.xcworkspace -scheme "App_macOS" -configuration "Test Debug" -xcconfig fixtures.xcconfig
+xcodebuild -quiet -workspace Workspace.xcworkspace -scheme "App_macOS" -configuration "Test Debug" -xcconfig fixtures.xcconfig -destination 'generic/platform=macOS'
 echo "✅ Successfully built macOS app"