/usr/bin/xspp is in libextutils-xspp-perl 0.1800-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | #!/usr/bin/perl -w
eval 'exec /usr/bin/perl -w -S $0 ${1+"$@"}'
    if 0; # not running under some shell
#############################################################################
## Name:        script/xspp
## Purpose:     XS++ preprocessor
## Author:      Mattia Barbon
## Modified by:
## Created:     01/03/2003
## RCS-ID:      $Id: wxperl_xspp 2334 2008-01-21 22:38:57Z mbarbon $
## Copyright:   (c) 2003-2004, 2006, 2008 Mattia Barbon
## Licence:     This program is free software; you can redistribute it and/or
##              modify it under the same terms as Perl itself
#############################################################################
use strict;
=head1 NAME
xspp - XS++ preprocessor
=head1 SYNOPSIS
    xspp [--typemap=typemap.xsp [--typemap=typemap2.xsp]]
         [--xsubpp[=/path/to/xsubpp] [--xsubpp-args="xsubpp args"]
         Foo.xsp
or
    perl -MExtUtils::XSpp::Cmd -e xspp -- <xspp options and arguments>
=head1 DOCUMENTATION
See L<ExtUtils::XSpp>.
=cut
use ExtUtils::XSpp::Cmd;
exit xspp;
 |