Development: libraries

Apache Portable Runtime 1.4.5
Friday, 2 March, 2012

The mission of the Apache Portable Runtime (APR) project is to create and maintain software libraries that provide a predictable and consistent interface to underlying platform-specific implementations. The...

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Berkeley DB 4.8.30
Wednesday, 11 January, 2012

Berkeley DB enables the development of custom data management solutions, without the overhead traditionally associated with such custom projects. Berkeley...

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Cairo 1.12.18
Monday, 20 June, 2016

Cairo is a 2D graphics library with support for multiple output devices, designed to produce consistent output on all output media while taking advantage of display hardware acceleration when available.

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CDDB Library (Libcddb) 1.3.2
Sunday, 24 March, 2013

Libcddb is a library that implements the different protocols (CDDBP, HTTP, SMTP) to access data on a CDDB server (

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Saturday, 29 June, 2002

Multiple resource serialization for REXX programs. Source code included.

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Libreria CUtil 2008/01/03
Monday, 14 December, 2015

CUtil is a library that contains functions that is used in most of Noller & Breining Software, source code included.

There are at all 15 functions, someone also to manage EAs.

Released as open source under the BSD 3...

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EVRexx (Extended Visual Rexx) 1.00
Sunday, 26 March, 1995

EVRexx is a package of external functions for REXX-programs. EVRexx enables the use of PM dialog-windows from your REXX-application. Source code included.

This package was inspired by...

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Expat XML Parser 2.1.0
Friday, 11 August, 2017

Expat is a library, written in C, for parsing XML documents. It's the underlying XML parser for the open source Mozilla project, perl's XML::Parser, and other open-source XML parsers. Expat is a stream-...

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FFT (libreria Fast Fourier Transform) 3.3.4
Saturday, 5 March, 2016

GCC Library for FFT analysis. Useful in developing audio analysis and elaboration software.

Port by different authors.

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Fontconfig & Freetype 2.13.1 & 2.10.0
Monday, 5 August, 2019

A runtime and a developer package that combines Fontconfig and FreeType into one package in such a way that it should be easy to build a cairo-based Mozilla build. These libraries are used to better...

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FSLib 5
Thursday, 16 April, 2009

The FSLib is a library to be able to use fullscreen-switchable windows on OS/2. Source code included.

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GD graphics library 2.3.0
Monday, 8 March, 1999

A graphics library for quick creation of PNG or JPEG images.

The gd graphics library allows your code to quickly draw images complete with lines, arcs, text, multiple colors, cut and paste from other images, and flood fills, and...

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GIF library 5.1.4
Monday, 19 November, 2018

GIFLib is a library for reading and writing gif images.

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Glass PM C++ library 1.4
Friday, 3 August, 2012

Glass PM C++ library aimed to develop PM applications on C++.

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Glib & Glib2 2.33.12
Tuesday, 27 April, 1999

GLib is a general-purpose utility library, which provides many useful data types, macros, type conversions, string utilities, file utilities, a mainloop abstraction, and so on. It works on many UNIX-like...

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GNU FriBidi 0.19.7
Tuesday, 8 August, 2017

GNU FriBidi is an implementation of the Unicode Bidirectional Algorithm (bidi).

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GNU gettext 0.21.1
Friday, 16 November, 2001

GNU Gettext provides internationalization and translation functions for projects. Utility for developers.

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Libreria GNU iconv 1.17
Wednesday, 28 June, 2000

This library provides an iconv() implementation, for systems where the is not one, or whose implementation cannot convert from/to Unicode.

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Libreria GNU per la precisione aritmetica arbitraria (GMP) 6.1.2
Monday, 23 January, 2017

Arbitrary precision arithmetic on signed ints, rationals, and floats. Designed for speed and believed to be the fastest of its kind. Includes the Berkeley MP compatible extension, docs, demos with src, and...

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GNU readline library for OS/2 8.0
Tuesday, 14 July, 1998

The Readline library provides a set of functions for use by applications that allow users to edit command lines as they are typed in.

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GnuTLS Transport Layer Security Library (GnuTLS) 3.6.12
Tuesday, 8 January, 2008

GnuTLS is a secure communications library implementing the SSL, TLS and DTLS protocols and technologies around them.

Port by different authors.

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Harbour 3.0.0
Friday, 30 March, 2007

Harbour is a 100% clipper compatible xbase language compiler. Another valid alternative for this compiler is xHarbour.

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Highly portable C system library (plibsys) 0.0.4
Saturday, 26 May, 2018

Highly portable C system library: threads and synchronization primitives, sockets (TCP, UDP, SCTP), IPv4 and IPv6, IPC, hash functions (MD5, SHA-1, SHA-2, SHA-3, GOST), binary trees (RB, AVL) and more....

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Hunspell 1.7.0
Wednesday, 29 May, 2019

Hunspell is the spell checker of LibreOffice,, Mozilla Firefox 3 & Thunderbird, Google Chrome, and it is also used...

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IBM SOMobjects Developers Toolkit for OS/2 3.0
Tuesday, 22 September, 1992

The System Object Model (SOM) is a new object-oriented programming technology for building, packaging, and manipulating binary class libraries.

With SOM,...

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JPEG, the Independent JPEG Group's JPEG software 9d
Thursday, 29 March, 2018

Port of jpeg library that implements JPEG image compression and decompression and that is used by some XFree86/OS2 programs.

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Json-c 0.16
Saturday, 29 December, 2012

Json-c library provides a C language implementation for JSON (JavaScript Object Notation) data format-interchange client/server. JSON is a lightweight data-...

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kLIBC / GCC Runtime Library 0.6.6
Monday, 15 July, 2019

Runtime libraries required for projects built with the new GCC compilers by Netlabs (a "runtime" is a set of low-level routines used by a compiler to invoke some of...

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KVA Library (K Video Accelerator) 1.2.4
Sunday, 24 January, 2016

This is a library for displaying video streams, which supports SNAP video overlays, WarpOverlay!, and DIVE. It has been used in KMP, MPlayer, and VLC.

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libass 0.13.7
Monday, 7 August, 2017

Libass is a portable subtitle renderer for the ASS/SSA (Advanced Substation Alpha/Substation Alpha) subtitle format. It is mostly compatible with ...

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Libdvbpsi (libreria DVB PSI) 1.3.0
Thursday, 11 February, 2016

The libdvbpsi is part of the VideoLAN project, a full MPEG2 client/server solution. The libdvbpsi can also be used with extra programs that need DVB and PSI decoders and generators.

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Libdvdcss (libreria Content Scramble System per DVD) 1.4.3
Sunday, 1 April, 2018

Libdvdcss for OS/2, a portable abstraction library for DVD decryption. Libdvdcss is a free and open source software library for accessing and unscrambling DVDs encrypted with the Content Scramble System (CSS...

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Libdvdnav (libreria navigazione DVD) 6.1.1
Monday, 22 January, 2018

Libdvdnav for OS/2. Libdvdnav is a library that allows easy use of sophisticated DVD navigation features such as DVD menus, multiangle playback and even interactive DVD games. Libdvdnav is part of the...

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Libdvdread (libreria lettura DVD) 6.1.2
Sunday, 31 March, 2019

Libdvdread for OS/2, provides a simple foundation for reading DVD video disks. Libdvdread is part of the VideoLAN project and is used by VLC media player and other DVD...

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Libgcrypt & Libgpg-error 1.8.6 & 1.39
Wednesday, 17 November, 2010

Libgcrypt is a general purpose crypto library based on the code used in GnuPG. Libgcrypt depends on the library 'libgpg-error', which must be installed correctly before Libgcrypt is built.

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Libjpeg-turbo 2.1.4
Saturday, 16 April, 2016

Libjpeg-turbo is a JPEG image codec that uses SIMD instructions (MMX, SSE2, NEON, AltiVec) to accelerate baseline JPEG compression and decompression on x86, x86-64, ARM, and PowerPC systems. On such systems, libjpeg-turbo is generally 2...

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Libpaper 1.1.28
Tuesday, 11 October, 2016

The paper library and accompanying files are intended to provide a simple way for applications to take actions based on a system- or user-specified paper size. This release is quite minimal, its purpose being to provide really basic...

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Libpipeline 1.4.1
Friday, 7 April, 2017

Libpipeline is a C library for setting up and running pipelines of processes, without needing to involve shell command-line parsing which is
often error-prone and insecure.  This alleviates programmers of the need to laboriously...

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Libreria EBML 1.4.1
Sunday, 11 August, 2019

LibEBML is a C++ libary to parse EBML files.

EBML, or Extensible Binary Meta-Language, is a simple XML like binary language for describing data in structured style.

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Libreria LIVE555 Streaming Media
Thursday, 26 January, 2012

Libraries for standards-based RTP/RTCP/RTSP/SIP multimedia streaming, suitable for embedded and/or low-cost streaming applications.

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Libreria Matroska 1.6.2
Sunday, 11 August, 2019

Libmatroska is a C++ libary to parse Matroska files (.mkv and .mka). Matroska is an audio/video container based on EBML.

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Libreria runtime LIBC Next 0.1.12
Friday, 15 February, 2019

LIBC Next (or LIBCn, for short) is an attempt to provide an implementation of the C runtime library which is suitable for porting Unix and Linux applications to the OS/2 Operating System using the GCC compiler...

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Libreria VPX 1.8.2
Thursday, 2 February, 2012

WebM defines the file container structure, video and audio formats.

WebM files consist of video streams compressed with the VP8 video codec and audio streams compressed...

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Libsndfile 1.0.25
Monday, 10 March, 2014

Libsndfile for OS/2. Libsndfile is a C library for reading and writing files containing sampled sound (such as MS Windows WAV and the Apple/SGI AIFF format) through one standard library interface.

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Little CMS (Little Color Management System) 2.11
Thursday, 30 March, 2017

Little CMS or LCMS is an open source color management system, released as a software library for use in other programs which will allow the use of International...

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MGL Dualmode Library R6
Thursday, 1 August, 2002

The purpose of the Dualmode library is to allow developers to write applications which can switch between full screen graphics modes and windowed DIVE graphics. The Dualmode API is designed to make these transitions completely...

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Friday, 1 December, 1995

An OS/2 DLL that helps programmers create OS/2 apps that easily read/write MIDI (sequencer) files. Includes C examples and docs.

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Ncurses (New curses) 6.1
Saturday, 17 July, 1999

The ncurses (new curses) library is a free software emulation of curses in System V Release 4.0, and more. It uses terminfo format, supports pads and color and multiple highlights and forms characters and function-key mapping, and has...

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NETLIB (OS/2 network utility library) 1.1
Friday, 21 October, 2016

NETLIB is a library used by other programs provided Robert D Eager. It is a DLL.

The package includes the following:

  • The NETLIB.DLL library
  • The NETLIB.LIB library
  • Source code
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Nettle 3.5.1
Thursday, 23 October, 2014

Nettle is a cryptographic library that is designed to fit easily in more or less any context: in crypto toolkits for object-oriented languages (C++, Python, Pike, ...), in applications like LSH or GNUPG, or...

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Network Security Services 3.47.0
Thursday, 23 February, 2017

Network Security Services (NSS) is a set of libraries designed to support cross-platform development of security-enabled client and server applications. Applications built with NSS can support SSL v2 and v3...

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Librerie di analisi numerica 0.4
Thursday, 21 April, 2016

A collection of source modules for matrix operations (multiplication, inversion, eigenvalues, etc.), differential equation solving, Fast Fourier Transform, manipulation of polynomials and rational functions.

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Opus Interactive Audio Codec Library & Opus tools 1.3.1
Friday, 15 November, 2013

Opus is a totally open, royalty-free, highly versatile audio codec. Opus is unmatched for interactive speech and music transmission over the Internet, but is also...

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PCRE - Perl Compatible Regular Expressions 8.45 & 10.37
Saturday, 27 August, 2011

The PCRE library is a set of functions that implement regular expression pattern matching using the same syntax and semantics as Perl 5. PCRE has its own native API, as well as a set of wrapper functions that...

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PDFLib 3.02
Thursday, 14 September, 2000

Portable C library for dynamically generating PDF ("Adobe Acrobat") files, with support for many other programming languages.

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Pixman 0.32.8
Tuesday, 21 August, 2018

Pixman is a library that provides low-level pixel manipulation features such as image compositing and trapezoid rasterization.

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Libreria PmCtlsPP 2003/06/01
Monday, 14 December, 2015

The PmCtlsPP library changes some OS/2 Presentation Manager controls window to add some features: for example, there is a function which implements, by a double-click into...

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Libreria PNG per la compressione immagini (libpng) 1.6.37
Friday, 22 January, 1999

PNG image compression library (libpng) for EMX and kLIBC/GCC environments. Port by different authors.

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Poppler 0.90.1
Friday, 26 September, 2014

Poppler is a PDF rendering library based on the xpdf project code base.

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Popt 1.18
Tuesday, 8 December, 2015

Popt is a C library for parsing command line parameters.

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PSL Library 0.21.1
Friday, 3 March, 2017

C library handle the Publix Suffix List. to  Public Suffix List. A "public suffix" is a domain name under which Internet users can directly register own names.

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Raw Library & DCRaw 0.20.2
Saturday, 29 December, 2018

Raw image processing Library and examples for OS/2.

LibRaw is a library for reading RAW files from digital photo cameras (CRW/CR2, NEF, RAF, DNG, MOS, KDC, DCR, etc, virtually all RAW formats are supported).


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REXX W32 Functions 1.5.1
Friday, 19 December, 2003

This package is a small collection of functions which provide access to the NT registry, event log, service control manager, clipboard and shell, to a large set of applications through OLE Automation, and to many more applications...

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Rexx/CURL 2.0
Monday, 30 April, 2012

Rexx/CURL consists of Rexx external functions that allows a Rexx program to access any URL. The basic concept of Rexx/CURL (and cURL), is that you specify a URL and all options appropriate...

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Rexx/Curses 1.3
Thursday, 2 August, 2001

Rexx/Curses provides Rexx programmers with an interface to the curses library, enabling the writing of portable text-based user interface programs in Rexx.

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RexxBase 2.23
Wednesday, 1 September, 1993

RexxBase is an external OS/2 DLL that allows REXX programs to process dBase files.  The DLL contains several REXX API to process up to 10 dBase files at a time.  An index facility is available to handle dBase NDX files.


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RexxRE (Regular Expression Library) 1.0.1
Monday, 26 May, 2003

RexxRE provides a Rexx interface to POSIX regular expressions. There is an analog to each of the POSIX functions, and a `parse' function which provides functionality similar to the Rexx parse instruction.

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RexxXML 1.0.0
Sunday, 26 March, 2006

RexxXML provides an interface to libxml and libxslt. It provides routines for parsing and manipulating XML and HTML files, using both Rexx and XSLT. The package includes the OS/2 excutable of RexxXML and related support files. Source...

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RxComm (REXX Communication Library) 1.6
Monday, 18 October, 1999

Dynamic DLL library to easily manage a COM port (RS-232C) using REXX.

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RxHash (Associative Arrays for Rexx) 1.0.0
Monday, 26 May, 2003

A Rexx library which extend associative arrays adding a set of routines to manipulate (copy and pass as function arguments) and convert between RxHash arrays and stem variables. Source code included.

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RxImgSize (Raster Image Support for REXX) 1.03
Monday, 19 May, 2014

RxImgSize is a rexx dll that can scale images and capture the screen or parts of the screen such as a window and save it to a file.

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RxMathFn (Basic math functions for OS/2 REXX )
Saturday, 8 May, 1993

Basic Mathematic Functions for use with OS/2 REXX.

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RxNetB (REXX/NETBIOS Function interface Package)
Friday, 23 October, 1992

This package provides access to the OS/2 NETBIOS Application Programming Interface from REXX programs. This provides a fast and simple way to learn NETBIOS and to build communications pgms.

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rxSock (REXX function package for TCP/IP sockets) 1.3
Tuesday, 17 August, 1993

rxSock is a REXX function package providing access to the OS/2 TCP/IP socket API as provided by the IBM TCP/IP product, version 1.2.1.

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Screen Blanker 1.3
Monday, 8 February, 2016

Screen Blanker is a program which blanks the screen after a specified period of inactivity, in order to prevent patterns from being "burned-in" to the screen. Source is included. Program is written in C language using Microsoft C 6.0,...

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Simple DirectMedia Layer 2.0.18 & 1.2.15
Monday, 4 August, 2008

Simple DirectMedia Layer is a cross-platform multimedia library designed to provide low level access to audio, keyboard, mouse, joystick, 3D hardware via OpenGL, and 2D video framebuffer. It is used by MPEG playback software, emulators...

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SSH2 Library 1.8.0
Tuesday, 16 February, 2010

libssh2 is a library implementing the SSH2 protocol, available under the revised BSD license.

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Libreria enc/dec Theora 1.1.1
Saturday, 3 March, 2012

Theora opensource encoding/decoding library, for developers.

Port by different authors.

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TxWindows Library 7.00
Sunday, 14 October, 2018

The TxWindows library for development of text mode applications using a windowing system including menus, dialogs and more!


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Libreria di compressione UCL 1.02
Tuesday, 30 June, 2015

Lossless compression library for program developers, UCL is portable and written in ANSI C.

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VarFetch 0.5.0
Monday, 18 February, 2002

A REXX DLL to list variables.

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X264 for OS/2 0.150.4482
Monday, 2 April, 2012

x264 is a free library for encoding H264/AVC video streams.

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XML C parser and toolkit (libXML2) 2.11.5
Monday, 26 August, 2002

XML is a metalanguage to design markup languages, i.e. text language where semantic and structure are added to the content using extra "markup" information enclosed between angle brackets. HTML is the most well-known markup language....

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XSLT processing library (libXSLT) 1.1.38
Thursday, 13 November, 2003

XSLT is an XML language for defining transformations of XML files from XML to some other arbitrary format, such as XML, HTML, plain text, etc. using standard XSLT stylesheets. libxslt is a C library which implements XSLT.


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Libreria di compressione zlib 1.2.11
Sunday, 8 April, 2012

Zlib compression library for EMX and kLIBC/GCC environments.

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