To install p5.34-extutils-xspp, run the following command in macOS terminal (Applications->Utilities->Terminal)
sudo port install p5.34-extutils-xspp
To see what files were installed by p5.34-extutils-xspp, run:
port contents p5.34-extutils-xspp
To later upgrade p5.34-extutils-xspp, run:
sudo port selfupdate && sudo port upgrade p5.34-extutils-xspp
Reporting an issue on MacPorts Trac
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