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gccg++homebrewdarwing++5.1

g++ ignore unrecognized command options

g++ will not allow me to build a package with an unrecognized command line option

$ g++ -Wshorten-64-to-32 
g++-5: error: unrecognized command line option '-Wshorten-64-to-32'

I need g++ to allow this unrecognized command line option. Is this possible?

edit

Is this possible using homebrew g++-5?

Solution

  • I need g++ to allow this unrecognized command line option. Is this possible?

    No, that option is not supported by upstream GCC. It was added by Apple to their modified GCC.

    -Wconversion should give some of the same warnings.