diff --git a/src/plugins/debugger/cdb/cdbdebugengine.cpp b/src/plugins/debugger/cdb/cdbdebugengine.cpp
index 2c4db8eabc0..77bab3e281b 100644
--- a/src/plugins/debugger/cdb/cdbdebugengine.cpp
+++ b/src/plugins/debugger/cdb/cdbdebugengine.cpp
@@ -49,6 +49,7 @@
 #include "breakhandler.h"
 #include "stackhandler.h"
 #include "watchhandler.h"
+#include "threadshandler.h"
 #include "registerhandler.h"
 #include "moduleshandler.h"
 #include "watchutils.h"
diff --git a/src/plugins/debugger/cdb/cdbstacktracecontext.cpp b/src/plugins/debugger/cdb/cdbstacktracecontext.cpp
index d7e9b7a3981..23a55433017 100644
--- a/src/plugins/debugger/cdb/cdbstacktracecontext.cpp
+++ b/src/plugins/debugger/cdb/cdbstacktracecontext.cpp
@@ -33,6 +33,7 @@
 #include "cdbdebugengine_p.h"
 #include "debuggeractions.h"
 #include "watchutils.h"
+#include "threadshandler.h"
 
 #include <utils/savedaction.h>
 
diff --git a/src/plugins/debugger/gdb/remotegdbprocess.cpp b/src/plugins/debugger/gdb/remotegdbprocess.cpp
index 1af11ef1bc0..6e51a3fa785 100644
--- a/src/plugins/debugger/gdb/remotegdbprocess.cpp
+++ b/src/plugins/debugger/gdb/remotegdbprocess.cpp
@@ -183,12 +183,12 @@ QProcessEnvironment RemoteGdbProcess::processEnvironment() const
     return QProcessEnvironment(); // TODO: Provide actual environment.
 }
 
-void RemoteGdbProcess::setProcessEnvironment(const QProcessEnvironment &env)
+void RemoteGdbProcess::setProcessEnvironment(const QProcessEnvironment & /* env */)
 {
     // TODO: Do something.
 }
 
-void RemoteGdbProcess::setEnvironment(const QStringList &env)
+void RemoteGdbProcess::setEnvironment(const QStringList & /* env */)
 {
     // TODO: Do something.
 }