use File::Spec::Functions qw(catdir splitdir canonpath);
use FindBin qw($RealBin);
use Config;

BEGIN {
    # Find a KRANG_ROOT based on path to bin
    my @dir = splitdir(canonpath($RealBin));
    $ENV{KRANG_ROOT} ||= catdir(@dir[0 .. $#dir - 1]);

    # use $KRANG_ROOT/lib for modules
    my $lib        = catdir($ENV{KRANG_ROOT}, "lib");
    $ENV{PERL5LIB} = $ENV{PERL5LIB} ? "$ENV{PERL5LIB}:${lib}" : $lib;
    unshift @INC, $lib, "$lib/".$Config{archname};
}