if $config{cross_compile_prefix} eq "";
# Allow overriding the names of some tools. USE WITH CARE
+# Note: only Unix cares about HASHBANGPERL... that explains
+# the default string.
$config{perl} = $ENV{'PERL'} || ($^O ne "VMS" ? $^X : "perl");
+$config{hashbangperl} =
+ $ENV{'HASHBANGPERL'} || $ENV{'PERL'} || "/usr/bin/env perl";
$target{cc} = $ENV{'CC'} || $target{cc} || "cc";
$target{ranlib} = $ENV{'RANLIB'} || $target{ranlib} ||
(which("$config{cross_compile_prefix}ranlib") ?