in reply to Re: Module::Build- Overriding default $Config{installprefix}
in thread Module::Build- Overriding default $Config{installprefix}

No, setting install_path did not change the path for etc directory; see the OP, namely PERL_MB_OPT assignment & result of grep ... _build.

I had not tried doing the manual installation for the offending module, for I need to install that thing in an automated way (as it is only one of many dependencies of App::SourcePlot).

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Re^3: Module::Build- Overriding default $Config{installprefix}
by karlgoethebier (Abbot) on Aug 01, 2023 at 11:31 UTC

    Maybe sudo is your friend? This can be adjusted quite finely. Best would be - as already mentioned above - your own Perl.

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