Write note about environment variables
@@ -160,6 +160,11 @@ If you want to use cuDNN or NCCL installed in other directory, please use ``CFLA
export LDFLAGS=-L/path/to/cudnn/lib
export LD_LIBRARY_PATH=/path/to/cudnn/lib:$LD_LIBRARY_PATH
+.. note::
+
+ Use full paths for the environment variables.
+ The setup script does not parse the home directory mark ``~``.
+
Install CuPy for developers
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