diff -rupN gmsh-3.0.6-source/CMakeLists.txt gmsh-3.0.6-source-new/CMakeLists.txt
--- gmsh-3.0.6-source/CMakeLists.txt	2018-03-10 10:28:44.967972069 +0100
+++ gmsh-3.0.6-source-new/CMakeLists.txt	2018-03-10 10:28:45.071972063 +0100
@@ -45,7 +45,7 @@ opt(CGNS "Enable CGNS mesh export (exper
 opt(CAIRO "Enable Cairo to render fonts (experimental)" ${DEFAULT})
 opt(CHACO "Enable Chaco mesh partitioner (alternative to Metis)" ${DEFAULT})
 opt(COMPRESSED_IO "Enable compressed (gzip) input/output using zlib" OFF)
-opt(CXX11 "Enable C++11" ${DEFAULT})
+opt(CXX14 "Enable C++14" ${DEFAULT})
 opt(DINTEGRATION "Enable discrete integration (needed for levelsets)" ${DEFAULT})
 opt(FLTK "Enable FLTK graphical user interface (requires mesh/post)" ${DEFAULT})
 opt(FOURIER_MODEL "Enable Fourier geometrical models (experimental)" OFF)
@@ -269,14 +269,14 @@ if(ENABLE_OPENMP)
   endif(OPENMP_FOUND)
 endif(ENABLE_OPENMP)
 
-if(ENABLE_CXX11)
+if(ENABLE_CXX14)
   # in recent cmake versions we could do e.g. set(CMAKE_CXX_STANDARD 11)
-  check_cxx_compiler_flag("-std=c++11" STDCXX11)
-  if(STDCXX11)
-    set_config_option(HAVE_CXX11 "C++11")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
-  endif(STDCXX11)
-endif(ENABLE_CXX11)
+  check_cxx_compiler_flag("-std=c++14" STDCXX14)
+  if(STDCXX14)
+    set_config_option(HAVE_CXX14 "C++14")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
+  endif(STDCXX14)
+endif(ENABLE_CXX14)
 
 macro(append_gmsh_src DIRNAME FILES)
   foreach(FILE ${FILES})
@@ -1435,10 +1435,10 @@ if(ENABLE_REVOROPT)
     get_source_file_property(PROP Plugin/CVTRemesh.cpp COMPILE_FLAGS)
     if(PROP)
       set_source_files_properties(Plugin/CVTRemesh.cpp PROPERTIES
-                                  COMPILE_FLAGS "${PROP} -std=c++11")
+                                  COMPILE_FLAGS "${PROP} -std=c++14")
     else(PROP)
       set_source_files_properties(Plugin/CVTRemesh.cpp PROPERTIES
-                                  COMPILE_FLAGS "-std=c++11")
+                                  COMPILE_FLAGS "-std=c++14")
     endif(PROP)
   else(EIGEN3_INC AND HAVE_MESH AND HAVE_PLUGINS AND HAVE_ANN AND HAVE_BFGS)
     message(WARNING "Revoropt requires Eigen3, Mesh, Plugins, Ann and BFGS")
@@ -1552,7 +1552,7 @@ if(ENABLE_BUILD_ANDROID)
     message(FATAL_ERROR "Cannot compile Gmsh for android without android-cmake")
   endif(NOT CMAKE_TOOLCHAIN_FILE)
   add_definitions(-D_GLIBCXX_USE_C99_MATH=1)
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
   set(CMAKE_BUILD_TYPE Release)
   set(LIBRARY_OUTPUT_PATH_ROOT ${CMAKE_CURRENT_BINARY_DIR})
   set(LIBRARY_OUTPUT_PATH ${CMAKE_CURRENT_BINARY_DIR}/libs/)