diff --git a/mkspecs/features/libraries.pri b/mkspecs/features/libraries.pri
index 3d93bb91c..c381d89b8 100644
--- a/mkspecs/features/libraries.pri
+++ b/mkspecs/features/libraries.pri
@@ -79,3 +79,6 @@ blackconfig {
     addStaticLibraryDependency(blackconfig)
     LIBS *= -lblackconfig
 }
+
+# to include buildconfig_gen.inc
+INCLUDEPATH *= $$BuildRoot/generated
diff --git a/src/blackconfig/blackconfig.pro b/src/blackconfig/blackconfig.pro
index 66a44d1eb..258ef7554 100644
--- a/src/blackconfig/blackconfig.pro
+++ b/src/blackconfig/blackconfig.pro
@@ -4,10 +4,15 @@ TARGET = blackconfig
 TEMPLATE = lib
 CONFIG += staticlib
 
-buildconfig_gen.input = buildconfig_gen.cpp.in
-buildconfig_gen.output = $$BuildRoot/buildconfig_gen.cpp
-GENERATED_SOURCES += $$BuildRoot/buildconfig_gen.cpp
-QMAKE_SUBSTITUTES += buildconfig_gen
+buildconfig_gen.cpp.input = buildconfig_gen.cpp.in
+buildconfig_gen.cpp.output = $$BuildRoot/generated/buildconfig_gen.cpp
+
+buildconfig_gen.inc.input = buildconfig_gen.inc.in
+buildconfig_gen.inc.output = $$BuildRoot/generated/buildconfig_gen.inc
+
+GENERATED_SOURCES += $$BuildRoot/generated/buildconfig_gen.cpp
+GENERATED_FILES += $$BuildRoot/generated/buildconfig_gen.inc
+QMAKE_SUBSTITUTES += buildconfig_gen.cpp buildconfig_gen.inc
 
 INCLUDEPATH += ..
 
@@ -15,7 +20,7 @@ DEFINES += LOG_IN_FILE
 HEADERS +=  *.h
 SOURCES +=  *.cpp
 DESTDIR = $$DestRoot/lib
-OTHER_FILES += buildconfig_gen.cpp.in
+OTHER_FILES += buildconfig_gen.cpp.in buildconfig_gen.inc.in
 
 win32: GIT_BIN = $$system($$(SYSTEMROOT)\system32\where git 2> nul)
 else: GIT_BIN = $$system(which git 2> /dev/null)
diff --git a/src/blackconfig/buildconfig.cpp b/src/blackconfig/buildconfig.cpp
index 2e65da592..c7bcb1602 100644
--- a/src/blackconfig/buildconfig.cpp
+++ b/src/blackconfig/buildconfig.cpp
@@ -24,16 +24,6 @@
 
 namespace BlackConfig
 {
-    bool CBuildConfig::isCompiledWithMsFlightSimulatorSupport()
-    {
-        return CBuildConfig::isCompiledWithFs9Support() || CBuildConfig::isCompiledWithFsxSupport() || CBuildConfig::isCompiledWithP3DSupport();
-    }
-
-    bool CBuildConfig::isCompiledWithFlightSimulatorSupport()
-    {
-        return CBuildConfig::isCompiledWithFsxSupport() || CBuildConfig::isCompiledWithXPlaneSupport();
-    }
-
     const QString &CBuildConfig::swiftGuiExecutableName()
     {
         static const QString s("swiftguistd");
@@ -59,16 +49,6 @@ namespace BlackConfig
                executable == CBuildConfig::swiftGuiExecutableName();
     }
 
-    bool CBuildConfig::isRunningOnWindowsNtPlatform()
-    {
-#ifdef Q_OS_WIN
-        // QSysInfo::WindowsVersion only available on Win platforms
-        return (QSysInfo::WindowsVersion & QSysInfo::WV_NT_based);
-#else
-        return false;
-#endif
-    }
-
     bool CBuildConfig::isRunningOnWindows10()
     {
 #ifdef Q_OS_WIN
@@ -80,29 +60,6 @@ namespace BlackConfig
 #endif
     }
 
-    bool CBuildConfig::isRunningOnMacOSPlatform()
-    {
-#ifdef Q_OS_MACOS
-        return true;
-#else
-        return false;
-#endif
-    }
-
-    bool CBuildConfig::isRunningOnLinuxPlatform()
-    {
-#ifdef Q_OS_LINUX
-        return true;
-#else
-        return false;
-#endif
-    }
-
-    bool CBuildConfig::isRunningOnUnixPlatform()
-    {
-        return CBuildConfig::isRunningOnMacOSPlatform() || CBuildConfig::isRunningOnLinuxPlatform();
-    }
-
     const QString &CBuildConfig::getPlatformString()
     {
         static const QString p([]
@@ -119,24 +76,6 @@ namespace BlackConfig
         return p;
     }
 
-    bool CBuildConfig::isDebugBuild()
-    {
-#ifdef QT_DEBUG
-        return true;
-#else
-        return false;
-#endif
-    }
-
-    bool CBuildConfig::isReleaseBuild()
-    {
-#ifdef QT_NO_DEBUG
-        return true;
-#else
-        return false;
-#endif
-    }
-
     namespace Private
     {
         bool isLocalDeveloperBuildImpl()
diff --git a/src/blackconfig/buildconfig.h b/src/blackconfig/buildconfig.h
index 01ad3c9c9..953f3d37c 100644
--- a/src/blackconfig/buildconfig.h
+++ b/src/blackconfig/buildconfig.h
@@ -24,64 +24,64 @@ namespace BlackConfig
     {
     public:
         //! with BlackCore?
-        static bool isCompiledWithBlackCore(); // defined in buildconfig_gen.cpp.in
+        static constexpr bool isCompiledWithBlackCore(); // defined in buildconfig_gen.inc.in
 
         //! with BlackSound?
-        static bool isCompiledWithBlackSound(); // defined in buildconfig_gen.cpp.in
+        static constexpr bool isCompiledWithBlackSound(); // defined in buildconfig_gen.inc.in
 
         //! with BlackInput?
-        static bool isCompiledWithBlackInput(); // defined in buildconfig_gen.cpp.in
+        static constexpr bool isCompiledWithBlackInput(); // defined in buildconfig_gen.inc.in
 
         //! with FS9 support?
-        static bool isCompiledWithFs9Support(); // defined in buildconfig_gen.cpp.in
+        static constexpr bool isCompiledWithFs9Support(); // defined in buildconfig_gen.inc.in
 
         //! with FSX support?
-        static bool isCompiledWithFsxSupport(); // defined in buildconfig_gen.cpp.in
+        static constexpr bool isCompiledWithFsxSupport(); // defined in buildconfig_gen.inc.in
 
         //! with P3D support?
-        static bool isCompiledWithP3DSupport(); // defined in buildconfig_gen.cpp.in
+        static constexpr bool isCompiledWithP3DSupport(); // defined in buildconfig_gen.inc.in
 
         //! with Fsuipc support?
-        static bool isCompiledWithFsuipcSupport(); // defined in buildconfig_gen.cpp.in
+        static constexpr bool isCompiledWithFsuipcSupport(); // defined in buildconfig_gen.inc.in
 
         //! Compiled with any MS Flight Simulator support (P3D, FSX, FS9)
-        static bool isCompiledWithMsFlightSimulatorSupport();
+        static constexpr bool isCompiledWithMsFlightSimulatorSupport();
 
         //! with XPlane support?
-        static bool isCompiledWithXPlaneSupport(); // defined in buildconfig_gen.cpp.in
+        static constexpr bool isCompiledWithXPlaneSupport(); // defined in buildconfig_gen.inc.in
 
         //! with any simulator libraries
-        static bool isCompiledWithFlightSimulatorSupport();
+        static constexpr bool isCompiledWithFlightSimulatorSupport();
 
         //! with GUI?
-        static bool isCompiledWithGui(); // defined in buildconfig_gen.cpp.in
+        static constexpr bool isCompiledWithGui(); // defined in buildconfig_gen.inc.in
 
         //! Debug build?
-        static bool isDebugBuild();
+        static constexpr bool isDebugBuild();
 
         //! Release build?
-        static bool isReleaseBuild();
+        static constexpr bool isReleaseBuild();
 
         //! Local build for developers
         static bool isLocalDeveloperDebugBuild();
 
         //! Vatsim enabled version?
-        static bool isVatsimVersion(); // defined in buildconfig_gen.cpp.in
+        static constexpr bool isVatsimVersion(); // defined in buildconfig_gen.inc.in
 
         //! Running on Windows NT platform?
-        static bool isRunningOnWindowsNtPlatform();
+        static constexpr bool isRunningOnWindowsNtPlatform();
 
         //! Windows 10
         static bool isRunningOnWindows10();
 
         //! Running on MacOS platform?
-        static bool isRunningOnMacOSPlatform();
+        static constexpr bool isRunningOnMacOSPlatform();
 
         //! Running on Linux platform?
-        static bool isRunningOnLinuxPlatform();
+        static constexpr bool isRunningOnLinuxPlatform();
 
         //! Running on Unix (Linux or Mac OS X) platform
-        static bool isRunningOnUnixPlatform();
+        static constexpr bool isRunningOnUnixPlatform();
 
         //! Info such as Win32, Win64, MacOs, Linux
         static const QString &getPlatformString();
@@ -149,14 +149,19 @@ namespace BlackConfig
 
     private:
         //! Major version
-        static int versionMajor(); // defined in buildconfig_gen.cpp.in
+        static constexpr int versionMajor(); // defined in buildconfig_gen.inc.in
 
         //! Minor version
-        static int versionMinor(); // defined in buildconfig_gen.cpp.in
+        static constexpr int versionMinor(); // defined in buildconfig_gen.inc.in
 
         //! Patch version
-        static int versionMicro(); // defined in buildconfig_gen.cpp.in
+        static constexpr int versionMicro(); // defined in buildconfig_gen.inc.in
     };
 } // ns
 
+// inline definitions of constexpr methods
+#define IN_BUILDCONFIG_H
+#include "buildconfig.inc"
+#undef IN_BUILDCONFIG_H
+
 #endif // guard
diff --git a/src/blackconfig/buildconfig.inc b/src/blackconfig/buildconfig.inc
new file mode 100644
index 000000000..86ffc9afd
--- /dev/null
+++ b/src/blackconfig/buildconfig.inc
@@ -0,0 +1,82 @@
+/* Copyright (C) 2018
+ * swift Project Community/Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+#ifndef IN_BUILDCONFIG_H
+#error This file is only to be included by buildconfig.h
+#endif
+
+// in-line definitions with qmake substitutions
+#include "buildconfig_gen.inc"
+
+//! \cond PRIVATE
+
+namespace BlackConfig
+{
+    constexpr bool CBuildConfig::isCompiledWithMsFlightSimulatorSupport()
+    {
+        return CBuildConfig::isCompiledWithFs9Support() || CBuildConfig::isCompiledWithFsxSupport() || CBuildConfig::isCompiledWithP3DSupport();
+    }
+
+    constexpr bool CBuildConfig::isCompiledWithFlightSimulatorSupport()
+    {
+        return CBuildConfig::isCompiledWithFsxSupport() || CBuildConfig::isCompiledWithXPlaneSupport();
+    }
+
+    constexpr bool CBuildConfig::isRunningOnWindowsNtPlatform()
+    {
+#ifdef Q_OS_WIN
+        return true;
+#else
+        return false;
+#endif
+    }
+
+    constexpr bool CBuildConfig::isRunningOnMacOSPlatform()
+    {
+#ifdef Q_OS_MACOS
+        return true;
+#else
+        return false;
+#endif
+    }
+
+    constexpr bool CBuildConfig::isRunningOnLinuxPlatform()
+    {
+#ifdef Q_OS_LINUX
+        return true;
+#else
+        return false;
+#endif
+    }
+
+    constexpr bool CBuildConfig::isRunningOnUnixPlatform()
+    {
+        return CBuildConfig::isRunningOnMacOSPlatform() || CBuildConfig::isRunningOnLinuxPlatform();
+    }
+
+    constexpr bool CBuildConfig::isDebugBuild()
+    {
+#ifdef QT_DEBUG
+        return true;
+#else
+        return false;
+#endif
+    }
+
+    constexpr bool CBuildConfig::isReleaseBuild()
+    {
+#ifdef QT_NO_DEBUG
+        return true;
+#else
+        return false;
+#endif
+    }
+} // ns
+
+//! \endcond
diff --git a/src/blackconfig/buildconfig_gen.cpp.in b/src/blackconfig/buildconfig_gen.cpp.in
index be8af07c7..0562d630a 100644
--- a/src/blackconfig/buildconfig_gen.cpp.in
+++ b/src/blackconfig/buildconfig_gen.cpp.in
@@ -11,110 +11,6 @@
 #include <QString>
 #include <QDateTime>
 
-$$DEFINE_WITH_BLACKCORE#define WITH_BLACKCORE
-$$DEFINE_WITH_BLACKSOUND#define WITH_BLACKSOUND
-$$DEFINE_WITH_BLACKINPUT#define WITH_BLACKINPUT
-$$DEFINE_WITH_BLACKGUI#define WITH_BLACKGUI
-$$DEFINE_WITH_SWIFTDATA#define WITH_SWIFTDATA
-$$DEFINE_WITH_SWIFTGUI#define WITH_SWIFTGUI
-$$DEFINE_WITH_SWIFTCORE#define WITH_SWIFTCORE
-$$DEFINE_WITH_FSX#define WITH_FSX
-$$DEFINE_WITH_P3D#define WITH_P3D
-$$DEFINE_WITH_FS9#define WITH_FS9
-$$DEFINE_WITH_FSUIPC#define WITH_FSUIPC
-$$DEFINE_WITH_XPLANE#define WITH_XPLANE
-$$DEFINE_SWIFT_VATSIM_SUPPORT#define SWIFT_VATSIM_SUPPORT
-
-bool BlackConfig::CBuildConfig::isCompiledWithBlackCore()
-{
-#ifdef WITH_BLACKCORE
-    return true;
-#else
-    return false;
-#endif
-}
-
-bool BlackConfig::CBuildConfig::isCompiledWithBlackSound()
-{
-#ifdef WITH_BLACKSOUND
-    return true;
-#else
-    return false;
-#endif
-}
-
-bool BlackConfig::CBuildConfig::isCompiledWithBlackInput()
-{
-#ifdef WITH_BLACKINPUT
-    return true;
-#else
-    return false;
-#endif
-}
-
-bool BlackConfig::CBuildConfig::isCompiledWithFs9Support()
-{
-#ifdef WITH_FS9
-    return true;
-#else
-    return false;
-#endif
-}
-
-bool BlackConfig::CBuildConfig::isCompiledWithP3DSupport()
-{
-#ifdef WITH_P3D
-    return true;
-#else
-    return false;
-#endif
-}
-
-bool BlackConfig::CBuildConfig::isCompiledWithFsxSupport()
-{
-#ifdef WITH_FSX
-    return true;
-#else
-    return false;
-#endif
-}
-
-bool BlackConfig::CBuildConfig::isCompiledWithFsuipcSupport()
-{
-#ifdef WITH_FSUIPC
-    return true;
-#else
-    return false;
-#endif
-}
-
-bool BlackConfig::CBuildConfig::isCompiledWithXPlaneSupport()
-{
-#ifdef WITH_XPLANE
-    return true;
-#else
-    return false;
-#endif
-}
-
-bool BlackConfig::CBuildConfig::isCompiledWithGui()
-{
-#ifdef WITH_BLACKGUI
-    return true;
-#else
-    return false;
-#endif
-}
-
-bool BlackConfig::CBuildConfig::isVatsimVersion()
-{
-#ifdef SWIFT_VATSIM_SUPPORT
-    return true;
-#else
-    return false;
-#endif
-}
-
 const QDateTime &BlackConfig::CBuildConfig::getEol()
 {
     static const QString eol(\"$$BLACK_EOL\"); // config.pri
@@ -156,7 +52,3 @@ const QDateTime &BlackConfig::CBuildConfig::lastCommitTimestamp()
     static const QDateTime dt = Private::lastCommitTimestampImpl();
     return dt;
 }
-
-int BlackConfig::CBuildConfig::versionMajor() { return $$BLACK_VER_MAJ; }
-int BlackConfig::CBuildConfig::versionMinor() { return $$BLACK_VER_MIN; }
-int BlackConfig::CBuildConfig::versionMicro() { return $$BLACK_VER_MIC; }
diff --git a/src/blackconfig/buildconfig_gen.inc.in b/src/blackconfig/buildconfig_gen.inc.in
new file mode 100644
index 000000000..5365aaa32
--- /dev/null
+++ b/src/blackconfig/buildconfig_gen.inc.in
@@ -0,0 +1,120 @@
+/* Copyright (C) 2018
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+#ifndef IN_BUILDCONFIG_H
+#error This file is only to be included by buildconfig.inc
+#endif
+
+$$DEFINE_WITH_BLACKCORE#define WITH_BLACKCORE
+$$DEFINE_WITH_BLACKSOUND#define WITH_BLACKSOUND
+$$DEFINE_WITH_BLACKINPUT#define WITH_BLACKINPUT
+$$DEFINE_WITH_BLACKGUI#define WITH_BLACKGUI
+$$DEFINE_WITH_SWIFTDATA#define WITH_SWIFTDATA
+$$DEFINE_WITH_SWIFTGUI#define WITH_SWIFTGUI
+$$DEFINE_WITH_SWIFTCORE#define WITH_SWIFTCORE
+$$DEFINE_WITH_FSX#define WITH_FSX
+$$DEFINE_WITH_P3D#define WITH_P3D
+$$DEFINE_WITH_FS9#define WITH_FS9
+$$DEFINE_WITH_FSUIPC#define WITH_FSUIPC
+$$DEFINE_WITH_XPLANE#define WITH_XPLANE
+$$DEFINE_SWIFT_VATSIM_SUPPORT#define SWIFT_VATSIM_SUPPORT
+
+constexpr bool BlackConfig::CBuildConfig::isCompiledWithBlackCore()
+{
+#ifdef WITH_BLACKCORE
+    return true;
+#else
+    return false;
+#endif
+}
+
+constexpr bool BlackConfig::CBuildConfig::isCompiledWithBlackSound()
+{
+#ifdef WITH_BLACKSOUND
+    return true;
+#else
+    return false;
+#endif
+}
+
+constexpr bool BlackConfig::CBuildConfig::isCompiledWithBlackInput()
+{
+#ifdef WITH_BLACKINPUT
+    return true;
+#else
+    return false;
+#endif
+}
+
+constexpr bool BlackConfig::CBuildConfig::isCompiledWithFs9Support()
+{
+#ifdef WITH_FS9
+    return true;
+#else
+    return false;
+#endif
+}
+
+constexpr bool BlackConfig::CBuildConfig::isCompiledWithP3DSupport()
+{
+#ifdef WITH_P3D
+    return true;
+#else
+    return false;
+#endif
+}
+
+constexpr bool BlackConfig::CBuildConfig::isCompiledWithFsxSupport()
+{
+#ifdef WITH_FSX
+    return true;
+#else
+    return false;
+#endif
+}
+
+constexpr bool BlackConfig::CBuildConfig::isCompiledWithFsuipcSupport()
+{
+#ifdef WITH_FSUIPC
+    return true;
+#else
+    return false;
+#endif
+}
+
+constexpr bool BlackConfig::CBuildConfig::isCompiledWithXPlaneSupport()
+{
+#ifdef WITH_XPLANE
+    return true;
+#else
+    return false;
+#endif
+}
+
+constexpr bool BlackConfig::CBuildConfig::isCompiledWithGui()
+{
+#ifdef WITH_BLACKGUI
+    return true;
+#else
+    return false;
+#endif
+}
+
+constexpr bool BlackConfig::CBuildConfig::isVatsimVersion()
+{
+#ifdef SWIFT_VATSIM_SUPPORT
+    return true;
+#else
+    return false;
+#endif
+}
+
+constexpr int BlackConfig::CBuildConfig::versionMajor() { return $$BLACK_VER_MAJ; }
+constexpr int BlackConfig::CBuildConfig::versionMinor() { return $$BLACK_VER_MIN; }
+constexpr int BlackConfig::CBuildConfig::versionMicro() { return $$BLACK_VER_MIC; }