--- src/VBox/Frontends/VirtualBox/Makefile.kmk.orig	2017-01-17 08:26:40.000000000 +0100
+++ src/VBox/Frontends/VirtualBox/Makefile.kmk	2017-02-10 19:08:22.842186000 +0100
@@ -238,6 +238,7 @@
  VirtualBox_LIBS.linux   += xcb
  VirtualBox_LIBS.solaris += xcb
  VirtualBox_LIBS.freebsd += xcb
+ VirtualBox_CXXFLAGS.freebsd += -std=c++11 
 endif # VBOX_WITH_QTGUI_V5
 
 ifneq ($(KBUILD_TARGET),win)
@@ -888,6 +889,7 @@
  VirtualBox_SOURCES += \
 	src/VBoxFBOverlay.cpp \
 	src/VBoxGLSupportInfo.cpp
+ VirtualBox_CXXFLAGS += -std=c++11
 endif
 
 #
@@ -1222,6 +1224,7 @@
   VBoxOGL2D_SOURCES = \
 	src/VBoxGLSupportInfo.cpp
   VBoxOGL2D_INCS = include
+  VBoxOGL2D_CXXFLAGS += -std=c++11
  endif
 endif

--- src/VBox/Debugger/Makefile.kmk.orig	2017-02-10 19:55:21.598089000 +0100
+++ src/VBox/Debugger/Makefile.kmk	2017-02-10 20:12:29.292761000 +0100
@@ -115,6 +115,7 @@
 	VBoxDbgBase.cpp \
 	VBoxDbgConsole.cpp \
 	VBoxDbgStatsQt4.cpp
+VBoxDbg_CXXFLAGS += -std=c++11
 VBoxDbg_LIBS = \
 	$(VBOX_LIB_VMM_LAZY)
 VBoxDbg_LDFLAGS.darwin = \
@@ -141,6 +142,7 @@
  tstVBoxDbg_LIBS.linux   += xcb
  tstVBoxDbg_LIBS.solaris += xcb
  tstVBoxDbg_LIBS.freebsd += xcb
+ tstVBoxDbg_CXXFLAGS     += -std=c++1
 endif # VBOX_WITH_QTGUI_V5
 tstVBoxDbg_SOURCES      = testcase/tstVBoxDbg.cpp
 tstVBoxDbg_LIBS         = \
--- src/VBox/HostServices/SharedOpenGL/Makefile.kmk.orig	2017-02-10 20:31:10.812441000 +0100
+++ src/VBox/HostServices/SharedOpenGL/Makefile.kmk	2017-02-10 20:32:04.804107000 +0100
@@ -444,6 +444,7 @@
     VBoxTestOGL_LIBS.linux   += xcb
     VBoxTestOGL_LIBS.solaris += xcb
     VBoxTestOGL_LIBS.freebsd += xcb
+    VBoxTestOGL_CXXFLAGS += -std=c++11
    endif # VBOX_WITH_QTGUI_V5
    VBoxTestOGL_LDFLAGS.darwin += -framework OpenGL
    VBoxTestOGL_LIBS.win       += $(PATH_SDK_$(VBOX_WINPSDK)_LIB)/Opengl32.lib
