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RE: Checking to see if a particular Module is installed

by athomason (Curate)
on Aug 11, 2000 at 07:11 UTC ( [id://27449]=note: print w/replies, xml ) Need Help??


in reply to Checking to see if a particular Module is installed

punkkid's answer is close, but doesn't quite do it if the use statement doesn't return a true value. For example, perl -e "eval 'use CGI' or die" dies. The correct way would be 
my $package = "GD";
eval "use $package; 1" ? gd_stuff() : alternate_stuff();

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RE: RE: Checking to see if a particular Module is installed
by merlyn (Sage) on Aug 11, 2000 at 15:23 UTC
    Slightly simpler: 
    eval 'require GD';
if ($@) {
  # problems with GD, fall back to non-GD
} else {
  # we have GD, go for it!
}

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    There's no point in using use, because you can't affect the compile-time imports at runtime if it's not there!

    -- Randal L. Schwartz, Perl hacker

[reply]
[d/l]

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