improve build

CMakeLists.txt

@@ -9,12 +9,14 @@ project(alibabacloud-sdk VERSION ${version})
 message(STATUS "Project version: ${PROJECT_VERSION}")
 
 set(TARGET_OUTPUT_NAME_PREFIX "alibabacloud-sdk-" CACHE STRING "The target's output name prefix")
+set(BUILD_PRODUCT "" CACHE STRING "Build by lower name of product")
+
 option(BUILD_SHARED_LIBS  "Enable shared library" ON)
 option(BUILD_UNIT_TESTS "Enable unit tests" OFF)
 option(BUILD_FUNCTION_TESTS "Enable function test" OFF)
-option(BUILD_PRODUCT "Build by lower name of product" OFF)
 
 set(LIB_TYPE STATIC)
+
 if(BUILD_SHARED_LIBS)
 	set(LIB_TYPE SHARED)
 	add_definitions(-DALIBABACLOUD_SHARED)
@@ -57,9 +59,10 @@ if(BUILD_FUNCTION_TESTS)
   add_subdirectory(test/function_test/vpc)
 endif()
 
-if(NOT BUILD_PRODUCT)
-  message(WARNING   "INVALID FOLDER 'BUILD_PRODUCT'=${BUILD_PRODUCT}")
+if(BUILD_PRODUCT STREQUAL "")
+  message(WARNING   "Please set the value of 'BUILD_PRODUCT'")
 else()
+  add_subdirectory(core)
   add_subdirectory(${BUILD_PRODUCT})
   message(STATUS   "'BUILD_PRODUCT'=${BUILD_PRODUCT}")
 endif()

README-CN.md

@@ -103,6 +103,7 @@ sudo sh easyinstall.sh ecs
   * 选择 `Browse Source` 为 `源代码目录(aliyun-openapi-cpp-sdk)`
   * 选择 `Browse build` 为 `构建目录(sdk_build)`
   * 点击 `configure`
+  * 使用小写的产品名称，设置 `BUILD_PRODUCT` 参数的值
   * 点击 `generate`, 构建 VS 解决方案。
 
 4. 编译安装 C++ SDK

README.md

@@ -109,6 +109,8 @@ git clone https://github.com/aliyun/aliyun-openapi-cpp-sdk.git
 
   - `Configure`
 
+  - use the lower name of product to set the value of `BUILD_PRODUCT`
+
   - `Generate`
 
 4. Build and Install C++ SDK