diff --git a/source/plugin/Makefile b/source/plugin/Makefile
index 5dce1f3ea..f9151eb22 100644
--- a/source/plugin/Makefile
+++ b/source/plugin/Makefile
@@ -103,7 +103,7 @@ endif
 
 ifeq ($(HAVE_JUCE),true)
 LIBS += ../modules/juce_audio_basics.a
-# LIBS += ../modules/juce_audio_devices.a
+LIBS += ../modules/juce_audio_processors.a
 LIBS += ../modules/juce_core.a
 LIBS += ../modules/juce_data_structures.a
 LIBS += ../modules/juce_events.a
diff --git a/source/plugin/carla-native-base.cpp b/source/plugin/carla-native-base.cpp
index 63ce1c6be..61750b6f2 100644
--- a/source/plugin/carla-native-base.cpp
+++ b/source/plugin/carla-native-base.cpp
@@ -27,26 +27,6 @@
 # include "lv2/lv2.h"
 #endif
 
-// -----------------------------------------------------------------------
-
-ulong carla_standalone_get_transient_win_id()
-{
-    return 0;
-}
-
-const char* carla_standalone_file_callback(FileCallbackOpcode action, bool isDir, const char* title, const char* filter)
-{
-    CARLA_SAFE_ASSERT_RETURN(title != nullptr && title[0] != '\0', nullptr);
-    CARLA_SAFE_ASSERT_RETURN(filter != nullptr && filter[0] != '\0', nullptr);
-    carla_debug("carla_file_callback(%i:%s, %s, \"%s\", \"%s\")", action, CarlaBackend::FileCallbackOpcode2Str(action), bool2str(isDir), title, filter);
-
-    return nullptr;
-
-    // unused
-    (void)action;
-    (void)isDir;
-}
-
 // -----------------------------------------------------------------------
 // Plugin List
 
diff --git a/source/plugin/carla-native-lv2-export.cpp b/source/plugin/carla-native-lv2-export.cpp
index abcdc74d5..a96e9e9ef 100644
--- a/source/plugin/carla-native-lv2-export.cpp
+++ b/source/plugin/carla-native-lv2-export.cpp
@@ -36,9 +36,9 @@
 
 #include <fstream>
 
-#if JUCE_WINDOWS
+#if defined(CARLA_OS_WIN)
 # define PLUGIN_EXT ".dll"
-#elif JUCE_MAC
+#elif defined(JUCE_MAC)
 # define PLUGIN_EXT ".dylib"
 #else
 # define PLUGIN_EXT ".so"
@@ -53,7 +53,7 @@ using juce::juce_wchar;
 
 static StringArray gUsedSymbols;
 
-const String nameToSymbol(const String& name, const uint32_t portIndex)
+static const String nameToSymbol(const String& name, const uint32_t portIndex)
 {
     String symbol, trimmedName = name.trim().toLowerCase();
 
@@ -99,7 +99,7 @@ const String nameToSymbol(const String& name, const uint32_t portIndex)
 
 // -----------------------------------------------------------------------
 
-void writeManifestFile(PluginListManager& plm)
+static void writeManifestFile(PluginListManager& plm)
 {
     String text;
 
@@ -154,7 +154,7 @@ static double   host_getSampleRate(NativeHostHandle) { return 44100.0; }
 static bool     host_isOffline(NativeHostHandle)     { return true;    }
 static intptr_t host_dispatcher(NativeHostHandle, NativeHostDispatcherOpcode, int32_t, intptr_t, void*, float) { return 0; }
 
-void writePluginFile(const NativePluginDescriptor* const pluginDesc)
+static void writePluginFile(const NativePluginDescriptor* const pluginDesc)
 {
     const String pluginLabel(pluginDesc->label);
     const String pluginFile("carla-native.lv2/" + pluginLabel + ".ttl");