File pytorch-hipcc-env-cxx-flags.patch of Package python-torch

diff --git a/cmake/Dependencies.cmake b/cmake/Dependencies.cmake
index e78305e0a..2235616e3 100644
--- a/cmake/Dependencies.cmake
+++ b/cmake/Dependencies.cmake
@@ -1044,6 +1044,7 @@ if(USE_ROCM)
       caffe2_update_option(USE_SYSTEM_NCCL ON)
     endif()
 
+    list(APPEND HIP_CXX_FLAGS $ENV{HIPCXXFLAGS})
     list(APPEND HIP_CXX_FLAGS -fPIC)
     list(APPEND HIP_CXX_FLAGS -D__HIP_PLATFORM_AMD__=1)
     list(APPEND HIP_CXX_FLAGS -DCUDA_HAS_FP16=1)