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All the Perl that's Practical to Extract and Report

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  • It's probably all right most of the time. Most likely on well tested platforms like x86 Linux. But by the time you get on to the platforms where gcc is less well tested at all of it's optimsations, you can come across subtle bugs. At least, that's the impressionI get from the very conservative FreeBSD guys. They will not endorse compiling world or kernel with -O2, only -O.

    Ultimately, it's really a user choice though, and not something that should be embedded in a Makefile. If you want all your CPAN downloads compiled with -O2, then configure CPAN to pass the right args to Makefile.PL. Problem solved.