Use _ENABLE_EXTENDED_ALIGNED_STORAGE for windows build in rmake.py

CHANGELOG.md

@@ -12,6 +12,7 @@ Full documentation for rocPRIM is available at [https://rocprim.readthedocs.io/e
 - `host_warp_size()` was moved into `rocprim/device/config_types.hpp`, and now uses either a `device_id` or a `stream` parameter to query the proper device and a `device_id` out parameter. The return type is `hipError_t`.
 - Added support for __int128_t in `device_radix_sort` and `block_radix_sort`.
 ### Fixed
+- Fixed build issues with `rmake.py` on Windows when using VS 2017 15.8 or later due to a breaking fix with extended aligned storage.
 
 ## [Unreleased rocPRIM-2.13.1 for ROCm 5.7.0]
 ### Added

rmake.py

@@ -101,6 +101,12 @@ def config_cmd():
         #set CPACK_PACKAGING_INSTALL_PREFIX= defined as blank as it is appended to end of path for archive creation
         cmake_platform_opts.append( f"-DWIN32=ON -DCPACK_PACKAGING_INSTALL_PREFIX=") #" -DCPACK_PACKAGING_INSTALL_PREFIX={rocm_path}"
         cmake_platform_opts.append( f"-DCMAKE_INSTALL_PREFIX=\"C:/hipSDK\"" )
+
+        # MSVC requires acknowledgement of using extended aligned storage.
+        # Before VS 2017 15.8, has non-conforming alignment. VS 2017 15.8 fixes this, but inherently changes layouts of
+        # aligned storage with extended alignment, and thus binary compatibility with such types.
+        cmake_platform_opts.append( "-DCMAKE_CXX_FLAGS=\"-D_ENABLE_EXTENDED_ALIGNED_STORAGE\"")
+
         rocm_cmake_path = '"' + cmake_path(os.getenv("ROCM_CMAKE_PATH", "C:/hipSDK")) + '"'
         generator = f"-G Ninja"
         # "-G \"Visual Studio 16 2019\" -A x64"  #  -G NMake ")  #