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trivial-features ensures consistent *FEATURES* across multiple Common Lisp implementations. For example, on MacOS X platforms, while most Lisps push :DARWIN to *FEATURES*, CLISP and Allegro push :MACOS and :MACOSX instead, respectively. Some Lisps might not push any feature suggesting MacOS X at all. trivial-features will make sure all Lisps will have :DARWIN in the *FEATURES* list when running on MacOS X.

DITrack is a free, open source, lightweight, distributed issue (bug, defect, ticket) tracking system using a Subversion repository instead of a backend database. It is written in Python and runs in UNIX environment (*BSD, Linux, MacOS X).

trivial-gray-streams is a trivial library which provides an extremely thin compatibility layer for Gray streams. From David N. Gray's STREAM-DEFINITION-BY-USER proposal: "Common Lisp does not provide a standard way for users to define their own streams for use by the standard I/O functions. This impedes the development of window systems for Common Lisp because, while there are standard Common Lisp I/O functions and there are beginning to be standard window systems, there is no portable way to connect them together to make a portable Common Lisp window system. There are also many applications where users might want to define their own filter streams for doing things like printer device control, report formatting, character code translation, or encryption/decryption."

Dmake is a make utility similar to GNU make or the Workshop dmake. dmake is different from other versions of Make in that it supports significant enhancements. The original author(s) were WTICorp.com, but they appear to have lost interest in maintaining the code. This port installs the version previously maintained by the Apache OpenOffice project.

The debug memory allocation or dmalloc library has been designed as a portable drop in replacement for the system's memory management routines while providing powerful debugging facilities configurable at runtime. These facilities include such things as memory-leak tracking, fence-post write detection, file/line number reporting, and general logging of statistics. Online documentation is available at:

DMUCS is a system that allows a group of users to share a compilation farm. Each compilation request from each user will be sent to the fastest available machine, every time. The system has these fine qualities: * Supports multiple users compiling simultaneously, and scales well to handle the new loads. * Supports multiple operating systems in the compilation farm. * Uses all processors of a multi-processor compilation host. * Makes best use of compilation hosts with widely differing CPU speeds. * Guarantees that a compilation host will not be overloaded by compilations. * Takes into account the load on a host caused by non-compilation tasks. * Supports the dynamic addition and removal of hosts to the compilation farm. * Works with distcc, which need not be altered in any way.

The Linux kernel. This port is a building block for creating custom Linux appliances in FreeBSD as part of your regular package build without a Linux VM or jail. Provide your own Linux kernel configuration file via the LINUX_KCONFIG make variable, or create your own via support of Linux' config tools. The default configuration comes with QEMU/KVM guest support.

dot.conf is a simple configuration-file parser library written in C. The configuration files created for dot.conf look very similar to those used by the Apache Webserver. Even Container-Directives known from httpd.conf can easily be used in the exact same manner as for Apache-Modules. It supports various types of arguments, dynamically loadable modules that create their own configuration options on-the-fly, a here-documents feature to pass very long ARG_STR data to your app, ${NAME:-default} style environment variable substitution for arguments, and on-the-fly inclusion of additional config files. Some behaviour can be toggled with flags at runtime. To keep dotconf from printing out warnings, you can install your own customized error handler.

The LLVM Project is a collection of modular and reusable compiler and toolchain technologies. This port includes Clang (a C/C++/Objective-C compiler), LLD (a linker), LLDB (a debugger), an OpenMP runtime library, and the LLVM infrastructure these are built on.