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can some one help me to understand the use of -Wall flag in gcc? I am working on make file and not able to understand this flag.

Thanks, vivek

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closed as off topic by mikewhatever, fabricator4, hhlp, Scaine, Anwar Shah Jan 12 '13 at 14:32

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I recommend asking programming questions on Stack Overflow, you're likely to get better answers there. –  Flimm Jan 12 '13 at 8:58

1 Answer 1

Sometimes, compiler does not show few trivial warnings. -Wall: W stands for warning, hence W+All=shown all possible warnings.

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what is the flag to suppress all the warnings? –  Vivek Jan 12 '13 at 9:32
    
... except that -Wall does not show all possible warnings, only the most commonly used ones. You can get even more warnings with -Wextra, and even that doesn't turn on all possible warnings. –  ams Jan 14 '13 at 9:12

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