From ae805ffe3fb03de9c959cd62b0ad3c2903ee7dac Mon Sep 17 00:00:00 2001
From: Oliver James <oli@juce.com>
Date: Wed, 13 Sep 2023 09:43:59 +0100
Subject: [PATCH] AudioWorkgroups: Missing macro bug

Only include context observer block when workgroup types available.
---
 .../juce_audio_plugin_client/juce_audio_plugin_client_AU_1.mm  | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modules/juce_audio_plugin_client/juce_audio_plugin_client_AU_1.mm b/modules/juce_audio_plugin_client/juce_audio_plugin_client_AU_1.mm
index daf5d176ad..1b9b40c322 100644
--- a/modules/juce_audio_plugin_client/juce_audio_plugin_client_AU_1.mm
+++ b/modules/juce_audio_plugin_client/juce_audio_plugin_client_AU_1.mm
@@ -2021,6 +2021,8 @@ private:
     int totalInChannels, totalOutChannels;
     HeapBlock<bool> pulledSucceeded;
     HeapBlock<MIDIPacketList> packetList { packetListBytes, 1 };
+
+   #if JUCE_AUDIOWORKGROUP_TYPES_AVAILABLE
     ObjCBlock<AURenderContextObserver> contextObserver { ^(const AudioUnitRenderContext* context)
     {
         if (juceFilter == nullptr)
@@ -2029,6 +2031,7 @@ private:
         auto workgroup = makeRealAudioWorkgroup (context != nullptr ? context->workgroup : nullptr);
         juceFilter->audioWorkgroupContextChanged (std::move (workgroup));
     } };
+   #endif
 
     ThreadLocalValue<bool> inParameterChangedCallback;