gn: Fix build with gcc13

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Jon Mason <jon.mason@arm.com>

meta-arm/recipes-devtools/gn/gn/0001-desc_builder.cc-Remove-redundant-move-in-return-stat.patch

@@ -0,0 +1,43 @@
+From 45673f4f62eb063d6d5aa0ad68a6171936ad9347 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Tue, 24 Jan 2023 00:13:57 -0800
+Subject: [PATCH] desc_builder.cc: Remove redundant move in return statement
+
+Fixes build with gcc13
+
+../git/src/gn/desc_builder.cc: In member function 'base::Value {anonymous}::BaseDescBuilder::ToBaseValue(const Scope*)':
+../git/src/gn/desc_builder.cc:179:21: error: redundant move in return statement [-Werror=redundant-move]
+  179 |     return std::move(res);
+      |            ~~~~~~~~~^~~~~
+
+Upstream-Status: Submitted [https://gn-review.googlesource.com/c/gn/+/15000]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ src/gn/desc_builder.cc | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/gn/desc_builder.cc b/src/gn/desc_builder.cc
+index 444a5e02..3ef170c3 100644
+--- a/src/gn/desc_builder.cc
++++ b/src/gn/desc_builder.cc
+@@ -167,7 +167,7 @@ class BaseDescBuilder {
+     base::ListValue res;
+     for (const auto& v : vector)
+       res.GetList().emplace_back(ToBaseValue(v));
+-    return std::move(res);
++    return res;
+   }
+ 
+   base::Value ToBaseValue(const Scope* scope) {
+@@ -176,7 +176,7 @@ class BaseDescBuilder {
+     scope->GetCurrentScopeValues(&map);
+     for (const auto& v : map)
+       res.SetKey(v.first, ToBaseValue(v.second));
+-    return std::move(res);
++    return res;
+   }
+ 
+   base::Value ToBaseValue(const Value& val) {
+-- 
+2.39.1
+

meta-arm/recipes-devtools/gn/gn_git.bb

@@ -5,6 +5,7 @@ LICENSE = "BSD-3-Clause"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=0fca02217a5d49a14dfe2d11837bb34d"
 
 SRC_URI = "git://gn.googlesource.com/gn;protocol=https;branch=main \
+           file://0001-desc_builder.cc-Remove-redundant-move-in-return-stat.patch \
            file://0001-Replace-lstat64-stat64-functions-on-linux.patch"
 SRCREV = "4bd1a77e67958fb7f6739bd4542641646f264e5d"
 PV = "0+git${SRCPV}"