diff --git a/cmake_support/OST.cmake b/cmake_support/OST.cmake
index 6826a0c172a2e3d94f2c1fc7f330c73b350c9de1..8a9e880968f299d494938f6fa64a6f94b9ce5c75 100644
--- a/cmake_support/OST.cmake
+++ b/cmake_support/OST.cmake
@@ -896,6 +896,12 @@ macro(setup_compiler_flags)
       #  -fno-strict-aliasing
       set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-strict-aliasing" )
     endif()
+    #message(STATUS "GCC VERSION " ${_GCC_VERSION})
+    if ((ENABLE_INFO OR ENABLE_GUI) AND _GCC_VERSION LESS "60")
+      # for older compilers we need to enable C++11 for Qt5
+      #message(STATUS "ADDING C++11 FLAG")
+      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+    endif()
   endif()
 endmacro()
 set(_BOOST_MIN_VERSION 1.31)
diff --git a/modules/doc/install.rst b/modules/doc/install.rst
index 54ac0dc748c50dbeade6fe15e124f6376396bc23..644cf503e99625c91cd2b6b9f7804e302e112d98 100644
--- a/modules/doc/install.rst
+++ b/modules/doc/install.rst
@@ -46,7 +46,7 @@ When you enable support for image processing, you will need:
 
 If you would like to use the info module, also install:
 
-* `Qt5 <http://qt-project.org/>`_ 
+* `Qt5 <http://qt-project.org/>`_ and a C++11 compatible compiler
 
 If you would like to use the graphical user interface (GUI), also install: