g77: unrecognized option `-trapuv' f771: error: invalid option `ips2'

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I am using g77 (gcc 3.4.6) in my fedora 20. I got compiler errors:

g77: unrecognized option `-trapuv'

f771: error: invalid option `ips2'

How can I solve this problem?

Also, if I want to use gfortran instead, what are the equivalent options?

Thanks.

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