diff --git a/kmix/kmix-platforms.cpp b/kmix/kmix-platforms.cpp
index d0c4d1d5..c5a44e01 100644
--- a/kmix/kmix-platforms.cpp
+++ b/kmix/kmix-platforms.cpp
@@ -22,6 +22,9 @@
 
 /* This code is being #include'd from mixer.cpp */
 
+#ifndef KMIX_PLATFORMS_CPP
+#define KMIX_PLATFORMS_CPP
+
 #include <config.h>
 
 #include <tqstring.h>
@@ -149,3 +152,4 @@ MixerFactory g_mixerFactories[] = {
     { NULL, NULL, NULL }
 };
 
+#endif // KMIX_PLATFORMS_CPP
diff --git a/kmix/mixertoolbox.cpp b/kmix/mixertoolbox.cpp
index 857f8d79..ecaf5f9d 100644
--- a/kmix/mixertoolbox.cpp
+++ b/kmix/mixertoolbox.cpp
@@ -29,6 +29,8 @@
 #include "mixdevice.h"
 #include "mixer.h"
 
+#include "kmix-platforms.cpp"
+
 #include "mixertoolbox.h"
 
 /***********************************************************************************
diff --git a/libkcddb/kcmcddb/cddbconfigwidget.h b/libkcddb/kcmcddb/cddbconfigwidget.h
index 2f0363d7..e927284c 100644
--- a/libkcddb/kcmcddb/cddbconfigwidget.h
+++ b/libkcddb/kcmcddb/cddbconfigwidget.h
@@ -20,6 +20,8 @@
 #ifndef CDDB_CONFIG_WIDGET_H
 #define CDDB_CONFIG_WIDGET_H
 
+#include <tqwidget.h>
+
 #include "cddbconfigwidgetbase.h"
 
 class CDDBConfigWidget : public CDDBConfigWidgetBase