Fixed build issues when building in "getting_started" dir (#662)

* Fixed build issues when building in "getting_started" dir

Fixes #646

Signed-off-by: The MathWorks, Inc. <alchrist@mathworks.com>

* Made changes requested by reviewer

doc/src/examples/getting_started/CMakeLists.txt

@@ -1,3 +1,5 @@
+cmake_minimum_required(VERSION 3.17)
+
 # [proj-begin]
 project(CppMicroServicesGettingStarted)
 
@@ -6,6 +8,19 @@ find_package(CppMicroServices REQUIRED)
 
 include(GenerateExportHeader)
 
+# Detect "local" build (build from getting started directory)
+if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+  # Set binary and library output directories
+  set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
+  set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
+  set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin")
+
+  set(BUILD_SHARED_LIBS ON CACHE BOOL "Build shared libraries")
+  set(US_BUILD_SHARED_LIBS ${BUILD_SHARED_LIBS})
+
+  set(CMAKE_ENABLE_EXPORTS ON)
+endif()
+
 # [interface-begin]
 #=========================================================
 # A library providing the ServiceTime interface
@@ -127,8 +142,8 @@ if(NOT BUILD_SHARED_LIBS)
   usFunctionGetResourceSource(TARGET GettingStarted OUT _srcs)
 endif()
 
-add_executable(GettingStarted ${_srcs})
-
+add_executable(GettingStarted)
+target_sources(GettingStarted PRIVATE ${_srcs})
 target_link_libraries(GettingStarted CppMicroServices)
 
 if(NOT BUILD_SHARED_LIBS)