diff --git a/src/libs/utils/hostosinfo.cpp b/src/libs/utils/hostosinfo.cpp
deleted file mode 100644
index d00887f719d..00000000000
--- a/src/libs/utils/hostosinfo.cpp
+++ /dev/null
@@ -1,58 +0,0 @@
-/**************************************************************************
-**
-** This file is part of Qt Creator
-**
-** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
-**
-** Contact: http://www.qt-project.org/
-**
-**
-** GNU Lesser General Public License Usage
-**
-** This file may be used under the terms of the GNU Lesser General Public
-** License version 2.1 as published by the Free Software Foundation and
-** appearing in the file LICENSE.LGPL included in the packaging of this file.
-** Please review the following information to ensure the GNU Lesser General
-** Public License version 2.1 requirements will be met:
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights. These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** Other Usage
-**
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**************************************************************************/
-#include "hostosinfo.h"
-
-namespace Utils {
-
-HostOsInfo::HostOs HostOsInfo::hostOs()
-{
-#if defined(Q_OS_WIN)
-    return HostOsWindows;
-#elif defined(Q_OS_LINUX)
-    return HostOsLinux;
-#elif defined(Q_OS_MAC)
-    return HostOsMac;
-#elif defined(Q_OS_UNIX)
-    return HostOsOtherUnix;
-#else
-    return HostOsOther;
-#endif
-}
-
-bool HostOsInfo::isAnyUnixHost()
-{
-#ifdef Q_OS_UNIX
-    return true;
-#else
-    return false;
-#endif
-}
-
-} // namespace Utils
diff --git a/src/libs/utils/hostosinfo.h b/src/libs/utils/hostosinfo.h
index e456ff7e73f..84df1f05479 100644
--- a/src/libs/utils/hostosinfo.h
+++ b/src/libs/utils/hostosinfo.h
@@ -40,14 +40,38 @@ public:
     // Add more as needed.
     enum HostOs { HostOsWindows, HostOsLinux, HostOsMac, HostOsOtherUnix, HostOsOther };
 
-    static HostOs hostOs();
+    static inline HostOs hostOs();
 
     static bool isWindowsHost() { return hostOs() == HostOsWindows; }
     static bool isLinuxHost() { return hostOs() == HostOsLinux; }
     static bool isMacHost() { return hostOs() == HostOsMac; }
-    static bool isAnyUnixHost();
+    static inline bool isAnyUnixHost();
 };
 
+HostOsInfo::HostOs HostOsInfo::hostOs()
+{
+#if defined(Q_OS_WIN)
+    return HostOsWindows;
+#elif defined(Q_OS_LINUX)
+    return HostOsLinux;
+#elif defined(Q_OS_MAC)
+    return HostOsMac;
+#elif defined(Q_OS_UNIX)
+    return HostOsOtherUnix;
+#else
+    return HostOsOther;
+#endif
+}
+
+bool HostOsInfo::isAnyUnixHost()
+{
+#ifdef Q_OS_UNIX
+    return true;
+#else
+    return false;
+#endif
+}
+
 } // namespace Utils
 
 #endif // HOSTOSINFO_H
diff --git a/src/libs/utils/utils.pro b/src/libs/utils/utils.pro
index fa2d8ccc716..30bba918bab 100644
--- a/src/libs/utils/utils.pro
+++ b/src/libs/utils/utils.pro
@@ -17,8 +17,7 @@ HEADERS += \
     hostosinfo.h
 
 SOURCES += \
-    proxyaction.cpp \
-    hostosinfo.cpp
+    proxyaction.cpp
 
 win32: LIBS += -lUser32
 # PortsGatherer