Doing the overriding in a BEGIN block is one way to fix that.

And, to be clear for the OP, when you use a module like Sub::Uplevel or Hook::LexWrap (or Contextual::Return), the compilation of those modules happens immediately as a BEGIN block (c.f. docs for use), thus caller is replaced globally before the rest of your code compiles. 

use Sub::Uplevel;  # *CORE::GLOBAL::caller replaced here

print caller();    # calls the replacement

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-xdg

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In reply to Re^2: Overriding caller everywhere (BEGIN) by xdg
in thread Overriding caller everywhere by Sartak

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