Can you force the upgrade? Yes.
Safely? Probably not.
libstdc++ is one of the packages that is required by your compiler. If you're going to upgrade this package, then upgrade them all. It doesn't take that much extra time to upgrade them, and your compilers will be up to date with the latest bug fixes.
If you force the upgrade, chances are you won't be able to compile any other programs, since your libstdc++ will be a greater version than your compiler.
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