CMake: Added option to disable building tests and examples (#574)

Author: ivan-cukic

projects/CMake/CMakeLists.txt

@@ -11,18 +11,20 @@ get_filename_component(RXCPP_DIR "${RXCPP_DIR}" PATH)
 
 MESSAGE( STATUS "RXCPP_DIR: " ${RXCPP_DIR} )
 
-add_subdirectory(${RXCPP_DIR}/Rx/v2/test ${CMAKE_CURRENT_BINARY_DIR}/test)
+if (NOT ${RXCPP_DISABLE_TESTS_AND_EXAMPLES})
+    add_subdirectory(${RXCPP_DIR}/Rx/v2/test ${CMAKE_CURRENT_BINARY_DIR}/test)
 
-add_subdirectory(${RXCPP_DIR}/projects/doxygen ${CMAKE_CURRENT_BINARY_DIR}/projects/doxygen)
+    add_subdirectory(${RXCPP_DIR}/projects/doxygen ${CMAKE_CURRENT_BINARY_DIR}/projects/doxygen)
 
-set(EXAMPLES_DIR ${RXCPP_DIR}/Rx/v2/examples)
+    set(EXAMPLES_DIR ${RXCPP_DIR}/Rx/v2/examples)
 
-add_subdirectory(${EXAMPLES_DIR}/cep ${CMAKE_CURRENT_BINARY_DIR}/examples/cep)
-add_subdirectory(${EXAMPLES_DIR}/stop ${CMAKE_CURRENT_BINARY_DIR}/examples/stop)
-add_subdirectory(${EXAMPLES_DIR}/linesfrombytes ${CMAKE_CURRENT_BINARY_DIR}/examples/linesfrombytes)
-add_subdirectory(${EXAMPLES_DIR}/println ${CMAKE_CURRENT_BINARY_DIR}/examples/println)
-add_subdirectory(${EXAMPLES_DIR}/pythagorian ${CMAKE_CURRENT_BINARY_DIR}/examples/pythagorian)
-add_subdirectory(${EXAMPLES_DIR}/tests ${CMAKE_CURRENT_BINARY_DIR}/examples/tests)
+    add_subdirectory(${EXAMPLES_DIR}/cep ${CMAKE_CURRENT_BINARY_DIR}/examples/cep)
+    add_subdirectory(${EXAMPLES_DIR}/stop ${CMAKE_CURRENT_BINARY_DIR}/examples/stop)
+    add_subdirectory(${EXAMPLES_DIR}/linesfrombytes ${CMAKE_CURRENT_BINARY_DIR}/examples/linesfrombytes)
+    add_subdirectory(${EXAMPLES_DIR}/println ${CMAKE_CURRENT_BINARY_DIR}/examples/println)
+    add_subdirectory(${EXAMPLES_DIR}/pythagorian ${CMAKE_CURRENT_BINARY_DIR}/examples/pythagorian)
+    add_subdirectory(${EXAMPLES_DIR}/tests ${CMAKE_CURRENT_BINARY_DIR}/examples/tests)
+endif ()
 
 # The list of RxCpp source files. Please add every new file to this list
 set(RX_SOURCES