diff --git a/modules/juce_audio_processors/format/juce_AudioPluginFormatManager.cpp b/modules/juce_audio_processors/format/juce_AudioPluginFormatManager.cpp
index fd0a7be086..90065b9c15 100644
--- a/modules/juce_audio_processors/format/juce_AudioPluginFormatManager.cpp
+++ b/modules/juce_audio_processors/format/juce_AudioPluginFormatManager.cpp
@@ -32,6 +32,8 @@
   ==============================================================================
 */
 
+#include <juce_audio_processors_headless/format/juce_PluginFormatDefs.h>
+
 namespace juce
 {
 
@@ -41,79 +43,49 @@ AudioPluginFormatManager::~AudioPluginFormatManager() {}
 //==============================================================================
 void AudioPluginFormatManager::addDefaultFormats()
 {
-   #if JUCE_PLUGINHOST_VST && (JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX || JUCE_BSD || JUCE_IOS)
-    #define HAS_VST 1
-   #else
-    #define HAS_VST 0
-   #endif
-
-   #if JUCE_PLUGINHOST_VST3 && (JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX || JUCE_BSD)
-    #define HAS_VST3 1
-   #else
-    #define HAS_VST3 0
-   #endif
-
-   #if JUCE_PLUGINHOST_AU && (JUCE_MAC || JUCE_IOS)
-    #define HAS_AU 1
-   #else
-    #define HAS_AU 0
-   #endif
-
-   #if JUCE_PLUGINHOST_LADSPA && (JUCE_LINUX || JUCE_BSD)
-    #define HAS_LADSPA 1
-   #else
-    #define HAS_LADSPA 0
-   #endif
-
-   #if JUCE_PLUGINHOST_LV2 && (JUCE_MAC || JUCE_LINUX || JUCE_BSD || JUCE_WINDOWS)
-    #define HAS_LV2 1
-   #else
-    #define HAS_LV2 0
-   #endif
-
    #if JUCE_DEBUG
     // you should only call this method once!
     for (auto* format [[maybe_unused]] : formats)
     {
-       #if HAS_VST
+       #if JUCE_INTERNAL_HAS_VST
         jassert (dynamic_cast<VSTPluginFormat*> (format) == nullptr);
        #endif
 
-       #if HAS_VST3
+       #if JUCE_INTERNAL_HAS_VST3
         jassert (dynamic_cast<VST3PluginFormat*> (format) == nullptr);
        #endif
 
-       #if HAS_AU
+       #if JUCE_INTERNAL_HAS_AU
         jassert (dynamic_cast<AudioUnitPluginFormat*> (format) == nullptr);
        #endif
 
-       #if HAS_LADSPA
+       #if JUCE_INTERNAL_HAS_LADSPA
         jassert (dynamic_cast<LADSPAPluginFormat*> (format) == nullptr);
        #endif
 
-       #if HAS_LV2
+       #if JUCE_INTERNAL_HAS_LV2
         jassert (dynamic_cast<LV2PluginFormat*> (format) == nullptr);
        #endif
     }
    #endif
 
-   #if HAS_AU
+   #if JUCE_INTERNAL_HAS_AU
     formats.add (new AudioUnitPluginFormat());
    #endif
 
-   #if HAS_VST
+   #if JUCE_INTERNAL_HAS_VST
     formats.add (new VSTPluginFormat());
    #endif
 
-   #if HAS_VST3
+   #if JUCE_INTERNAL_HAS_VST3
     formats.add (new VST3PluginFormat());
    #endif
 
-   #if HAS_LADSPA
+   #if JUCE_INTERNAL_HAS_LADSPA
     formats.add (new LADSPAPluginFormat());
    #endif
 
-   #if HAS_LV2
+   #if JUCE_INTERNAL_HAS_LV2
     formats.add (new LV2PluginFormat());
    #endif
 }
diff --git a/modules/juce_audio_processors_headless/format/juce_PluginFormatDefs.h b/modules/juce_audio_processors_headless/format/juce_PluginFormatDefs.h
new file mode 100644
index 0000000000..108d28df51
--- /dev/null
+++ b/modules/juce_audio_processors_headless/format/juce_PluginFormatDefs.h
@@ -0,0 +1,77 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE framework.
+   Copyright (c) Raw Material Software Limited
+
+   JUCE is an open source framework subject to commercial or open source
+   licensing.
+
+   By downloading, installing, or using the JUCE framework, or combining the
+   JUCE framework with any other source code, object code, content or any other
+   copyrightable work, you agree to the terms of the JUCE End User Licence
+   Agreement, and all incorporated terms including the JUCE Privacy Policy and
+   the JUCE Website Terms of Service, as applicable, which will bind you. If you
+   do not agree to the terms of these agreements, we will not license the JUCE
+   framework to you, and you must discontinue the installation or download
+   process and cease use of the JUCE framework.
+
+   JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
+   JUCE Privacy Policy: https://juce.com/juce-privacy-policy
+   JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/
+
+   Or:
+
+   You may also use this code under the terms of the AGPLv3:
+   https://www.gnu.org/licenses/agpl-3.0.en.html
+
+   THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
+   WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
+   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.
+
+  ==============================================================================
+*/
+
+#pragma once
+
+// The following definitions are PRIVATE and should not be queried or modified
+// by user code. These are exclusively used to enable and disable JUCE
+// implementation details.
+
+#if defined (JUCE_INTERNAL_HAS_VST) \
+ || defined (JUCE_INTERNAL_HAS_VST3) \
+ || defined (JUCE_INTERNAL_HAS_AU) \
+ || defined (JUCE_INTERNAL_HAS_LADSPA) \
+ || defined (JUCE_INTERNAL_HAS_LV2)
+ #error These preprocessor definitions should not be set by the build system. Use the JUCE_PLUGINHOST_* definitions instead.
+#endif
+
+#if JUCE_PLUGINHOST_VST && (JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX || JUCE_BSD || JUCE_IOS)
+ #define JUCE_INTERNAL_HAS_VST 1
+#else
+ #define JUCE_INTERNAL_HAS_VST 0
+#endif
+
+#if JUCE_PLUGINHOST_VST3 && (JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX || JUCE_BSD)
+ #define JUCE_INTERNAL_HAS_VST3 1
+#else
+ #define JUCE_INTERNAL_HAS_VST3 0
+#endif
+
+#if JUCE_PLUGINHOST_AU && (JUCE_MAC || JUCE_IOS)
+ #define JUCE_INTERNAL_HAS_AU 1
+#else
+ #define JUCE_INTERNAL_HAS_AU 0
+#endif
+
+#if JUCE_PLUGINHOST_LADSPA && (JUCE_LINUX || JUCE_BSD)
+ #define JUCE_INTERNAL_HAS_LADSPA 1
+#else
+ #define JUCE_INTERNAL_HAS_LADSPA 0
+#endif
+
+#if JUCE_PLUGINHOST_LV2 && (JUCE_MAC || JUCE_LINUX || JUCE_BSD || JUCE_WINDOWS)
+ #define JUCE_INTERNAL_HAS_LV2 1
+#else
+ #define JUCE_INTERNAL_HAS_LV2 0
+#endif