Merging recent changes in cmake from master (tests).

CMakeLists.txt

@@ -1,4 +1,6 @@
 cmake_minimum_required (VERSION 2.8.6)
+cmake_policy(SET CMP0054 OLD)
+
 project (KratosMultiphysics)
 
 # Set here the version number **** only update upon tagging a release!
@@ -56,6 +58,7 @@ if(${CMAKE_COMPILER_IS_GNUCXX})
   message("CMAKE_CXX_FLAGS = ${CMAKE_CXX_FLAGS}")
   message("CMAKE_C_FLAGS = ${CMAKE_C_FLAGS}")
 endif(${CMAKE_COMPILER_IS_GNUCXX})
+
 if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
   if(${CMAKE_CXX_COMPILER_ID} MATCHES Clang)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC  -funroll-loops -Wall -Wno-unused-local-typedef -Wno-unknown-pragmas  ")
@@ -123,8 +126,17 @@ if(${MSVC14})
   # Nothing needed right now
 endif(${MSVC14})
 
-# Tell the linker to give an error if undefined functions are found
-# set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--no-undefined")
+# If no test policy enable by default
+if(NOT DEFINED KRATOS_BUILD_TESTING)
+	message("KRATOS_BUILD_TESTING not defined. Setting to ON")
+	SET (KRATOS_BUILD_TESTING ON)
+endif(NOT DEFINED KRATOS_BUILD_TESTING)
+
+# If install prefix is set, install all the files.
+if(DEFINED KRATOS_INSTALL_PREFIX)
+	SET(INSTALL_TESTING_FILES ON)
+	SET(INSTALL_PYTHON_FILES ON)
+endif(DEFINED KRATOS_INSTALL_PREFIX)
 
 # Set kratos specific module path
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake_modules")
@@ -133,11 +145,6 @@ set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake_modules")
 ######################################################################################
 ######################################################################################
 
-# if(DEFINED KRATOS_EXTRA_LINK_LIBRARIES)
-#     link_directories(${KRATOS_EXTRA_LINK_PATH})
-#     find_library(EXTRA_LINK_LIBS ${KRATOS_EXTRA_LINK_LIBRARIES} PATH ${KRATOS_EXTRA_LINK_PATH} )
-# endif(DEFINED KRATOS_EXTRA_LINK_LIBRARIES)
-
 ## Find all dependencies
 
 ##*****************************