karls-mac-mini:hook karl$ perl -MPOSIX=tmpnam -e 1 Unimplemented: POSIX::tmpnam(): use File::Temp instead at /Users/karl/perl5/perlbrew/perls/perl-5.26.2/lib/5.26.2/darwin-2level/POSIX.pm line 185. Unimplemented: POSIX::tmpnam() at -e line 0. BEGIN failed--compilation aborted. karls-mac-mini:hook karl$ perlbrew list 5.14.2threads perl-5.16.2 perl-5.16.3 perl-5.17.7 perl-5.18.0 perl-5.18.1 perl-5.18.2 perl-5.18.2threads perl-5.20.0 perl-5.20.0threads perl-5.22.1-threads perl-5.24.1threads * perl-5.26.2 karls-mac-mini:hook karl$ perlbrew use perl-5.24.1threads karls-mac-mini:hook karl$ perl -MPOSIX=tmpnam -e 1