Changing error message

setup.py

@@ -47,9 +47,12 @@ def check_cuda_torch_binary_vs_bare_metal(cuda_dir):
     print(raw_output + "from " + cuda_dir + "/bin\n")
 
     if (bare_metal_major != torch_binary_major) or (bare_metal_minor != torch_binary_minor):
-        raise RuntimeError("Cuda extensions are being compiled with a version of Cuda that does "
-                           "not match the version used to compile Pytorch binaries.  "
-                           "Pytorch binaries were compiled with Cuda {}.\n".format(torch.version.cuda))
+        raise RuntimeError("Cuda extensions are being compiled with a version of Cuda that does " +
+                           "not match the version used to compile Pytorch binaries.  " +
+                           "Pytorch binaries were compiled with Cuda {}.\n".format(torch.version.cuda) +
+                           "In some cases, a minor-version mismatch will not cause later errors:  " +
+                           "https://github.com/NVIDIA/apex/pull/323#discussion_r287021798.  "
+                           "You can try commenting out this check (at your own risk).")
 
 if "--cuda_ext" in sys.argv:
     from torch.utils.cpp_extension import CUDAExtension