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[gcc] Disable all gcc warnings

I'm working on a project that will read compiler error messages of a particular variety and do useful things with them. The sample codebase I'm testing this on (a random open-source application), and hence rebuilding frequently, contains a few bits that generate warnings, which are of no interest to me.

How do I disable all warnings from GCC, so I can just see error messages if there are any?

This question is related to gcc g++ warnings

The answer is

-w is the GCC-wide option to disable warning messages.

Source: Stackoverflow.com

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