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Print a warning with unknown SCons variables to ease troubleshooting #661

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Nov 24, 2021
Merged

Print a warning with unknown SCons variables to ease troubleshooting #661

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7 changes: 7 additions & 0 deletions SConstruct
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Original file line number Diff line number Diff line change
Expand Up @@ -147,6 +147,13 @@ opts.Add(BoolVariable("generate_template_get_node", "Generate a template version
opts.Update(env)
Help(opts.GenerateHelpText(env))

# Detect and print a warning listing unknown SCons variables to ease troubleshooting.
unknown = opts.UnknownVariables()
if unknown:
print("WARNING: Unknown SCons variables were passed and will be ignored:")
for item in unknown.items():
print(" " + item[0] + "=" + item[1])

# This makes sure to keep the session environment variables on Windows.
# This way, you can run SCons in a Visual Studio 2017 prompt and it will find
# all the required tools
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