Merge branch 'bug/cxx11-for-old-cmake' into 'develop'

Bug/cxx11 for old cmake

Closes #5

See merge request !16

CMakeLists.txt

@@ -33,9 +33,14 @@ camitk_opensource_packaging()
 # Configure CamiTK test coverage report generation (if and only if CAMITK_TEST_COVERAGE is set to TRUE)
 include(camitk/test/CamiTKTestCoverage)
 
-# From now on, CamiTK is C++11 compliant (this flag is needed for early support of C++11 in g++)
-# All target after this declaration wil be compile with c++11 policy
-set(CMAKE_CXX_STANDARD 11)
+# CamiTK requires C++11
+if(${CMAKE_VERSION} VERSION_LESS "3.1.3") 
+    # CMAKE_CXX_STANDARD not available for cmake 3.0.2 (as in debian old stable)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+else()
+    # All target after this declaration will be compile with c++11 policy
+    set(CMAKE_CXX_STANDARD 11)
+endif()
 
 # Specific to SDK: first compile the SDK (it looks like a CEP but is sooooo special...)
 add_subdirectory(sdk)

sdk/libraries/cepgenerator/resources/cep.CMakeLists.txt.in

@@ -6,7 +6,14 @@ cmake_minimum_required(VERSION 3.0)
 # Find CamiTK SDK
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR})
 
-set(CMAKE_CXX_STANDARD 11)
+# CamiTK requires C++11
+if(${CMAKE_VERSION} VERSION_LESS "3.1.3") 
+    # CMAKE_CXX_STANDARD not available for cmake 3.0.2 (as in debian old stable)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+else()
+    # All target after this declaration will be compile with c++11 policy
+    set(CMAKE_CXX_STANDARD 11)
+endif()
 
 find_package(CamiTK REQUIRED)
 include(${CAMITK_USE_FILE})