C:\Perl\cpan\build\YAML-0.58>perl Makefile.PL
Undefined subroutine &ActivePerl::Config::find_prog called at C:/Perl/site/lib/ActivePerl/Config.pm line 70.
Compilation failed in require at C:/Perl/lib/ExtUtils/MakeMaker.pm line 7.
BEGIN failed--compilation aborted at C:/Perl/lib/ExtUtils/MakeMaker.pm line 7.
Compilation failed in require at inc/Module/Install/Can.pm - /Users/ingy/local/lib/perl5/site_perl/5.8.6/Module/Install/Can.pm line 8.
BEGIN failed--compilation aborted at inc/Module/Install/Can.pm - /Users/ingy/local/lib/perl5/site_perl/5.8.6/Module/Install/Can.pm line 8.
Compilation failed in require at /Users/ingy/src/ingy/YAML/inc/Module/Install.pm - /Users/ingy/local/lib/perl5/site_perl/5.8.6/Module/Install.pm line 180.
Global symbol "$Verbose" requires explicit package name at C:/Perl/lib/ExtUtils/MM_Any.pm line 1267.
Global symbol "$Verbose" requires explicit package name at C:/Perl/lib/ExtUtils/MM_Any.pm line 1277.
Compilation failed in require at C:/Perl/lib/ExtUtils/MM_Unix.pm line 25.
Compilation failed in require at inc/Module/Install/Metadata.pm - /Users/ingy/local/lib/perl5/site_perl/5.8.6/Module/Install/Metadata.pm line 197.

##</code><code>##

use ActiveState::Path qw(find_prog realpath);

##</code><code>##

 
use base 'Exporter';
our @EXPORT_OK = qw(path_list find_prog is_abs_path abs_path join_path rel_path unsymlinked realpath);