- pnm command line utilities for image manipulation netpbm
- X11 libraries, including dev files for building libx11-dev
- XTEST library, including dev files for building libxtst-dev
+ - Perl-compatible regexp library, including dev files libpcre3-dev
- Tk interpreter /usr/bin/wish tk8.4
- Perl module XML::Parser libxml-parser-perl
- Perl module JSON::Parser libjson-perl