[cfe-dev] Compiler arguments for clang_parseTranslationUnit

[Stefan Seefeld]

On 2011-02-15 17:11, Douglas Gregor wrote:
>
> However, you'll likely need to use -nostdinc/-nostdinc++ and a bunch of -isystem options to teach Clang to look in the right include directories.

I see, thanks. How are the built-in macros determined that clang defines 
? Can I disable them with something similar to -nostdinc ?

The current Synopsis logic allows users to specify a compiler to emulate.
If this is a GCC variant, I query the compiler itself for macros and 
headers (via `g++ -E -v -dD ...`)
If it is a MSVC compiler, I use hardcoded sets of flags.

This logic requires that the parser then doesn't add its own set of 
macros, as those may actually conflict with what I feed in from the above.


Thanks,
         Stefan


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