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Merge pull request #762 from felixheld/env-doc-clarification 

README.md: clarify to not manually source the Vivado environment
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litghost 2019-04-05 12:12:39 -07:00 committed by GitHub
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@ -22,6 +22,13 @@ XRAY_VIVADO_SETTINGS to point to the settings64.sh file of the installed vivado
export XRAY_VIVADO_SETTINGS=/opt/Xilinx/Vivado/2017.2/settings64.sh
Do not source the settings64.sh in your shell, since this adds directories of
the Vivado installation at the beginning of your PATH and LD_LIBRARY_PATH
variables, which will likely interfere with or break non-Vivado applications in
that shell. The Vivado wrapper utils/vivado.sh makes sure that the environment
variables from XRAY_VIVADO_SETTINGS are automatically sourced in a separate
shell that is then only used to run Vivado to avoid these problems.
### Step 2: ###
Pull submodules: