CPP: Cleanup makefiles (awsdocs#6139)

cpp/example_code/lambda/tests/CMakeLists.txt

@@ -32,8 +32,11 @@ if(NOT GTest_FOUND)
     FetchContent_MakeAvailable(googletest)
 endif()
 
+# Use the MSVC variable to determine if this is a Windows build.
+set(WINDOWS_BUILD ${MSVC})
+
 # Set the location for Windows to find the installed libraries of the SDK.
-if(MSVC)
+if(WINDOWS_BUILD)
     string(REPLACE ";" "/aws-cpp-sdk-all;" SYSTEM_MODULE_PATH "${CMAKE_SYSTEM_PREFIX_PATH}/aws-cpp-sdk-all")
     list(APPEND CMAKE_PREFIX_PATH ${SYSTEM_MODULE_PATH})
 endif()
@@ -48,24 +51,24 @@ add_executable(
 
 # If the compiler is some version of Microsoft Visual C++, or another compiler simulating C++,
 # and building as shared libraries, then dynamically link to those shared libraries.
-if(MSVC AND BUILD_SHARED_LIBS)
-
-    set(CMAKE_BUILD_TYPE Debug) # Explicitly setting CMAKE_BUILD_TYPE is necessary in Windows to copy DLLs.
+if(WINDOWS_BUILD)
+    # set(BIN_SUB_DIR "/Debug") # If you are building from the command line, you may need to uncomment this
+    # and set the proper subdirectory to the executables' location.
 
     # Copy relevant AWS SDK for C++ libraries into the current binary directory for running and debugging.
     AWSSDK_CPY_DYN_LIBS(
-        CURRENT_TARGET_AWS_DEPENDENCIES
-        ""
-        ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_BUILD_TYPE}
+            CURRENT_TARGET_AWS_DEPENDENCIES
+            ""
+            ${CMAKE_CURRENT_BINARY_DIR}${BIN_SUB_DIR}
     )
 
     add_custom_command(
-        TARGET
-        ${CURRENT_TARGET}
-        POST_BUILD
-        COMMAND ${CMAKE_COMMAND} -E copy
-                ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_BINDIR}/${CMAKE_BUILD_TYPE}/gtest.dll
-                ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_BUILD_TYPE}
+            TARGET
+            ${CURRENT_TARGET}
+            POST_BUILD
+            COMMAND ${CMAKE_COMMAND} -E copy
+            ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_BINDIR}${BIN_SUB_DIR}/gtest.dll
+            ${CMAKE_CURRENT_BINARY_DIR}${BIN_SUB_DIR}
     )
  endif()
 
@@ -79,19 +82,8 @@ if (NOT DEFINED GTEST_SOURCE_FILES)
     )
 endif()
 
-# Check whether the target system is Windows, including Win64.
-if(WIN32)
-    list(FILTER GTEST_SOURCE_FILES EXCLUDE REGEX "/gtest_list_buckets_disabling_dns_cache.cpp$") # Not supported in windows, see file for details
-
-    # Check whether the compiler is some version of Microsoft Visual C++, or another compiler simulating C++.
-    if(MSVC)
-        source_group("Source Files" FILES ${GTEST_SOURCE_FILES})
-    endif(MSVC)
-endif()
-
 enable_testing()
 
-
 foreach(TEST_FILE ${GTEST_SOURCE_FILES})
     string(REPLACE "gtest_" "../" SOURCE_FILE ${TEST_FILE})
      if (EXISTS ${SOURCE_FILE})