;# pwd.pl - keeps track of current working directory in PWD environment var
;#
+#
+# This library is no longer being maintained, and is included for backward
+# compatibility with Perl 4 programs which may require it.
+#
+# In particular, this should not be used as an example of modern Perl
+# programming techniques.
+#
+# Suggested alternative: Cwd
+#
;# $RCSfile: pwd.pl,v $$Revision: 4.1 $$Date: 92/08/07 18:24:11 $
;#
;# $Log: pwd.pl,v $
if ($ENV{'PWD'}) {
local($dd,$di) = stat('.');
local($pd,$pi) = stat($ENV{'PWD'});
- if ($di != $pi || $dd != $pd) {
+ if (!defined $dd or !defined $pd or $di != $pi or $dd != $pd) {
chop($ENV{'PWD'} = `pwd`);
}
}
if ($ENV{'PWD'} =~ m|(/[^/]+(/[^/]+/[^/]+))(.*)|) {
local($pd,$pi) = stat($2);
local($dd,$di) = stat($1);
- if ($di == $pi && $dd == $pd) {
+ if (defined $pd and defined $dd and $di == $pi and $dd == $pd) {
$ENV{'PWD'}="$2$3";
}
}