--- lib-src/libvamp/vamp-sdk/PluginAdapter.h
+++ lib-src/libvamp/vamp-sdk/PluginAdapter.h
@@ -37,6 +37,9 @@
 #ifndef _VAMP_PLUGIN_ADAPTER_H_
 #define _VAMP_PLUGIN_ADAPTER_H_
 
+#include <stdlib.h>
+#include <string.h>
+
 #include <vamp/vamp.h>
 
 #include "Plugin.h"
--- lib-src/libvamp/vamp-sdk/PluginHostAdapter.h
+++ lib-src/libvamp/vamp-sdk/PluginHostAdapter.h
@@ -37,6 +37,8 @@
 #ifndef _VAMP_PLUGIN_HOST_ADAPTER_H_
 #define _VAMP_PLUGIN_HOST_ADAPTER_H_
 
+#include <stdlib.h>
+
 #include <vamp/vamp.h>
 #include <vamp-sdk/Plugin.h>
 
--- lib-src/libvamp/vamp-sdk/hostext/PluginLoader.h
+++ lib-src/libvamp/vamp-sdk/hostext/PluginLoader.h
@@ -37,6 +37,8 @@
 #ifndef _VAMP_PLUGIN_LOADER_H_
 #define _VAMP_PLUGIN_LOADER_H_
 
+#include <string.h>
+
 #include <vector>
 #include <string>
 #include <map>
--- src/import/ImportMP3.cpp
+++ src/import/ImportMP3.cpp
@@ -35,6 +35,8 @@
 #include "../Internat.h"
 #include "../Tags.h"
 
+#define DESC _("MP3 files")
+
 static const wxChar *exts[] =
 {
    wxT("mp3"),
@@ -49,7 +51,7 @@
                         UnusableImportPluginList *unusableImportPluginList)
 {
    UnusableImportPlugin* mp3IsUnsupported =
-      new UnusableImportPlugin(DESC, wxArrayString(wxSIZEOF(exts), exts));
+      new UnusableImportPlugin(DESC, wxArrayString(WXSIZEOF(exts), exts));
 
    unusableImportPluginList->Append(mp3IsUnsupported);
 }