If you upgraded to Lion with Xcode 4.1, you may find youself fail to build any
perls with perlbrew. This is because that the newly released /usr/bin/nm does
not work with the perl building system. Luckly, this issues has already been
solved in perl-blead, and BINGOS quickly made a new release of
Devel::PatchPerl for us.
To fix this isusse before the next perlbrew release, grab this patchperl
standalone executable, put it in your $PERLBREW_ROOT/bin and chmod +x it:
https://raw.github.com/gist/962406/93cd90f5e6c6a86073afb3815f0ea06c3c9e99ed/patchperl
That's something like this:
export PERLBREW_ROOT=${HOME}/perl5/perlbrew
curl -k -L https://raw.github.com/gist/962406/93cd90f5e6c6a86073afb3815f0ea06c3c9e99ed/patchperl -o $PERLBREW_ROOT/bin/patchperl
chmod +x $_
Or if you've previously installed perlbrew by doing cpan App::perlbrew, simply
upgrade your Devel::PatchPerl to 0.42.
As of the time this article is written, the latest release of perlbrew is 0.27, the next release of perlbrew will fix this issue.