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[libc++] Upgrade Xcode to 26.0 #160097

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Merged
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Oct 2, 2025
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[libc++] Upgrade Xcode to 26.0 #160097

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2 changes: 1 addition & 1 deletion .github/workflows/libcxx-build-and-test.yaml
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Expand Up @@ -215,7 +215,7 @@ jobs:
- uses: maxim-lobanov/setup-xcode@60606e260d2fc5762a71e64e74b2174e8ea3c8bd # v1.6.0
with:
# https://github.com/actions/runner-images/blob/main/images/macos/macos-15-Readme.md
xcode-version: '16.3'
xcode-version: '26.0'
- uses: seanmiddleditch/gha-setup-ninja@3b1f8f94a2f8254bd26914c4ab9474d4f0015f67 # v6
- name: Build and test
run: |
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2 changes: 1 addition & 1 deletion libcxx/docs/index.rst
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Expand Up @@ -133,7 +133,7 @@ velocity, libc++ drops support for older compilers as newer ones are released.
Compiler Versions Restrictions Support policy
============ =================== ========================== =====================
Clang 19, 20, 21-git latest two stable releases per `LLVM's release page <https://releases.llvm.org>`_ and the development version
AppleClang 16.4 latest stable release per `Xcode's release page <https://developer.apple.com/documentation/xcode-release-notes>`_
AppleClang 26.0 latest stable release per `Xcode's release page <https://developer.apple.com/documentation/xcode-release-notes>`_
Open XL 17.1.3 (AIX) latest stable release per `Open XL's documentation page <https://www.ibm.com/docs/en/openxl-c-and-cpp-aix>`_
GCC 15 In C++11 or later only latest stable release per `GCC's release page <https://gcc.gnu.org/releases.html>`_
============ =================== ========================== =====================
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3 changes: 2 additions & 1 deletion ...x/test/std/language.support/support.exception/propagation/make_exception_ptr.objc.pass.mm
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Expand Up @@ -17,7 +17,8 @@
// out-of-the-box.
// REQUIRES: has-fobjc-arc && darwin

// ADDITIONAL_COMPILE_FLAGS: -fobjc-arc
// FIXME: including <Foundation/Foundation.h> seems to be currently broken with modules enabled
// ADDITIONAL_COMPILE_FLAGS: -fobjc-arc -fno-modules
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CC @ian-twilightcoder

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@philnik777 Can you undo this change temporarily so we can see the actual failure? I'm not able to reproduce this with

echo "#import <Foundation/Foundation.h>" | clang++ -x objective-c++ - -fmodules -fobjc-arc -std=c++26

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Heh yeah I assure you the Foundation module works fine, it's rather load bearing. There would be very loud alarms in every Apple building around the world if that wasn't working. 😂

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Hate to break it to you, but it reproduces with echo "#import <Foundation/Foundation.h>" | clang++ -x objective-c++ - -fmodules -fcxx-modules -std=c++26:

While building module 'Foundation' imported from <stdin>:1:
While building module 'CoreGraphics' imported from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSGeometry.h:14:
In file included from <module-includes>:1:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/CoreGraphics.framework/Headers/CoreGraphics.h:11:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/CoreGraphics.framework/Headers/CGBitmapContext.h:9:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/CoreGraphics.framework/Headers/CGContext.h:20:
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/CoreGraphics.framework/Headers/CGImage.h:96:18: error: invalid bitwise operation between different enumeration types ('CGImageAlphaInfo' and 'CGImageComponentInfo')
   96 |     return alpha | component | byteOrder | pixelFormat;
      |            ~~~~~ ^ ~~~~~~~~~
While building module 'Foundation' imported from <stdin>:1:
In file included from <module-includes>:1:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:52:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSKeyedArchiver.h:9:
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSGeometry.h:14:9: fatal error: could not build module 'CoreGraphics'
   14 | #import <CoreGraphics/CGBase.h>
      |  ~~~~~~~^
<stdin>:1:9: fatal error: could not build module 'Foundation'
    1 | #import <Foundation/Foundation.h>
      |  ~~~~~~~^
3 errors generated.


#include <cassert>
#include <exception>
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