[cfe-dev] CompilerInstance and setting compiler options

[peter jacobsen via cfe-dev]

Hi,

I am developing a static analyzer using clang.  I setup a CompilerInstance,
ASTConsumer etc. as copied from a number of examples.  I would like to know
how to set compiler options.  In particular I would like to suppress
'warning: expression result unused'  (-Wunused-value)

Thanks,

peter
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