From 96eea9e2637ed2475e44a8cb9c18e22edafd7162 Mon Sep 17 00:00:00 2001
From: Alfred Wingate <parona@protonmail.com>
Date: Thu, 28 Aug 2025 06:48:50 +0300
Subject: dev-qt/qtwebengine: fix clang-21

Signed-off-by: Alfred Wingate <parona@protonmail.com>
Part-of: https://github.com/gentoo/gentoo/pull/43590
Closes: https://github.com/gentoo/gentoo/pull/43590
Signed-off-by: Ionen Wolkens <ionen@gentoo.org>
---
 .../files/qtwebengine-6.9.2-clang-21.patch         | 42 ++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 dev-qt/qtwebengine/files/qtwebengine-6.9.2-clang-21.patch

(limited to 'dev-qt/qtwebengine/files/qtwebengine-6.9.2-clang-21.patch')

diff --git a/dev-qt/qtwebengine/files/qtwebengine-6.9.2-clang-21.patch b/dev-qt/qtwebengine/files/qtwebengine-6.9.2-clang-21.patch
new file mode 100644
index 000000000000..374ee195dafe
--- /dev/null
+++ b/dev-qt/qtwebengine/files/qtwebengine-6.9.2-clang-21.patch
@@ -0,0 +1,42 @@
+https://issues.chromium.org/issues/423841920
+https://chromium-review.googlesource.com/c/chromium/src/+/6633292
+
+From b0ff8c3b258a8816c05bdebf472dbba719d3c491 Mon Sep 17 00:00:00 2001
+From: Hans Wennborg <hans@chromium.org>
+Date: Tue, 10 Jun 2025 09:51:47 -0700
+Subject: [PATCH] Don't return an enum from EnumSizeTraits::Count
+
+`Enum::kMaxValue + 1` may be outside the representable range of the
+enum, which Clang will treat as an error in constexpr contexts (see
+bug).
+
+Bug: 423841920
+Change-Id: I629402cf93bd8419a71f94ff9ed9340d4f88a706
+Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6633292
+Auto-Submit: Hans Wennborg <hans@chromium.org>
+Commit-Queue: Nico Weber <thakis@chromium.org>
+Reviewed-by: Nico Weber <thakis@chromium.org>
+Commit-Queue: Hans Wennborg <hans@chromium.org>
+Cr-Commit-Position: refs/heads/main@{#1471871}
+--- a/src/3rdparty/chromium/base/metrics/histogram_macros_internal.h
++++ b/src/3rdparty/chromium/base/metrics/histogram_macros_internal.h
+@@ -28,16 +28,16 @@
+ template <typename Enum>
+   requires(std::is_enum_v<Enum>)
+ struct EnumSizeTraits {
+-  static constexpr Enum Count() {
++  static constexpr uintmax_t Count() {
+     if constexpr (requires { Enum::kMaxValue; }) {
+       // Since the UMA histogram macros expect a value one larger than the max
+       // defined enumerator value, add one.
+-      return static_cast<Enum>(base::to_underlying(Enum::kMaxValue) + 1);
++      return static_cast<uintmax_t>(base::to_underlying(Enum::kMaxValue) + 1);
+     } else {
+       static_assert(
+           sizeof(Enum) == 0,
+           "enumerator must define kMaxValue enumerator to use this macro!");
+-      return Enum();
++      return 0;
+     }
+   }
+ };
-- 
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