From 510a3ee324d0d0e888a60511d60dd998910d9062 Mon Sep 17 00:00:00 2001
From: John Haddon <thehaddonyoof@gmail.com>
Date: Thu, 31 Aug 2023 10:14:48 +0100
Subject: [PATCH] Fix compilation with Apple Clang 13

- Add missing include
- Remove unused lambda capture in FilterAlgo
- Capture `object` explicitly by value in Collect, because we're not allowed to capture structured bindings directly.
---
 Changes.md                     | 5 +++++
 include/Gaffer/Collect.h       | 2 ++
 src/Gaffer/Collect.cpp         | 2 +-
 src/GafferImage/FilterAlgo.cpp | 2 +-
 4 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/Changes.md b/Changes.md
index 11cd49c2d32..6b7665170d1 100644
--- a/Changes.md
+++ b/Changes.md
@@ -7,6 +7,11 @@ API
 - ThreadState : Added `process()` method.
 - Process : Added const overload for `handleException()` method. The non-const version will be removed in future.
 
+Build
+-----
+
+- MacOS : Fixed compilation with Clang 13.
+
 1.3.2.0 (relative to 1.3.1.0)
 =======
 
diff --git a/include/Gaffer/Collect.h b/include/Gaffer/Collect.h
index b51c5f0a646..2cf8b09f6cd 100644
--- a/include/Gaffer/Collect.h
+++ b/include/Gaffer/Collect.h
@@ -42,6 +42,8 @@
 #include "Gaffer/TypedObjectPlug.h"
 #include "Gaffer/TypeIds.h"
 
+#include <unordered_map>
+
 namespace Gaffer
 {
 
diff --git a/src/Gaffer/Collect.cpp b/src/Gaffer/Collect.cpp
index e8bcea2ab51..639d9b54b14 100644
--- a/src/Gaffer/Collect.cpp
+++ b/src/Gaffer/Collect.cpp
@@ -566,7 +566,7 @@ void Collect::compute( ValuePlug *output, const Context *context) const
 					{
 						dispatchPlugFunction(
 							input,
-							[&] ( auto *plug ) {
+							[&, object=object] ( auto *plug ) {
 								using OutputTraits = OutputTraits<remove_const_t<remove_pointer_t<decltype( plug )>>>;
 								auto typedObject = static_cast<typename OutputTraits::ObjectType *>( object );
 								OutputTraits::container( *typedObject )[index] = OutputTraits::collect( plug );
diff --git a/src/GafferImage/FilterAlgo.cpp b/src/GafferImage/FilterAlgo.cpp
index 33be4318151..d6ba34b884d 100644
--- a/src/GafferImage/FilterAlgo.cpp
+++ b/src/GafferImage/FilterAlgo.cpp
@@ -416,7 +416,7 @@ float GafferImage::FilterAlgo::sampleBox( Sampler &sampler, const V2f &p, float
 			float yFilterWeight = filter->yfilt( ( y + 0.5f - p.y ) * yscale );
 			sampler.visitPixels(
 				visitBounds,
-				[ &totalW, &v, &p, &pixelBounds, &scratchMemory, &yFilterWeight ] ( float value, int x, int y )
+				[ &totalW, &v, &pixelBounds, &scratchMemory, &yFilterWeight ] ( float value, int x, int y )
 				{
 					float w = scratchMemory[ x - pixelBounds.min.x ] * yFilterWeight;