The amazing Borland C++ Compiler, optimized release, finally available also for OS/2 Warp! Indeed it is very fast, highly performing, complete, easy to use and with a really comprehensive documentation!...

cc65 - a freeware C compiler for 6502 based systems. It make programs for C64, C128, C16, plus 4, Pet, Apple II and Atari 8Bit machines. You can also test your programs on VICE/2 (Versatile Commodore Emulator).

CMake is a cross-platform, open-source build system.

CMake is a family of tools designed to build, test and package software.

CMake is...

A development kit to make developing new device drivers very easy. This kit contains header files and a library that contains all of the system related things necessary to build a device driver on OS/2. The...

This is a source code sample for replacing the DosBeep and Dos16Beep functions to make it sound on the multimedia audio device instead of the PC speaker.

Ebe is an Integrated Development Environment (IDE) designed to support Assembly Language.

It is written in C++ using Qt for the GUI elements.

EBE supports program development in C, C++, Fortran and Assembly.

EMX/GCC compiler for OS/2.  If you are an end user, probabily you just need the EMX runtime.

CTags generates an index (tag) file of language objects found in source files that allows these items to be quickly and easily located by a text editor or other utility.

A ForTran example shows how to call a ForTran function from rexx using a C function as an intermediary. It works with the GNU Compiler, and might work with f2c. This is unsupported.

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

The GNU binutils are a collection of binary tools for GCC. The main ones are:

• ld - the GNU linker.
• as - the GNU assembler.

And other...

Gperf is a program that generates perfect hash functions for sets of key words.

A perfect hash function is simply: A hash function and a data structure that allows...

The MPFR library is a C library for multiple-precision floating-point computations with correct rounding.

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....

IBM OS/2 Device Driver Development ToolKit. Passport Advantage with Software Maintenance subscription required.

IBM C and C++ Compilers for OS/2.

Beta of GCC 3.2.2 from Innotek.

A JPEG2000 codec build for OS/2. Jasper is a software application specialized in bitmap conversion to JPEG 2000 format.

JsonCpp is an implementation of a JSON reader and writer in C++. JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines...

Port of Asynchronous I/O support from glibc. Asynchronous I/O support library does the support of asynchronous I/O requests executing, e.g., read/write/list i/o. The requests are queued and are executed in...

Portable Foreign Function Interface Library. Compilers for high level languages generate code that follow certain conventions. These conventions are necessary, in part, for separate compilation to work. One...

Libmpeg2 is a free library for decoding mpeg-2 and mpeg-1 video streams. It is released under the terms of the GPL license.

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...

LPEX macro to support opening of files by dropping them onto LPEX window + dropping marked text fragments from EPM (Enhanced Editor, the default OS/2 & eComStation's development editor).

It is a library that add benefits to...

is a high-quality MPEG audio decoder. It currently supports MPEG-1 and the MPEG-2 extension to Lower Sampling Frequencies, as well as the so-called MPEG 2.5 format. All three audio layers (Layer I, Layer II, and Layer III a.k.a. MP3)...

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...

Newprj creates a new OS/2 PM project. It's a pretty simple program. You run  it by typing:

newprj projname
 
where projname is the name of the new project. 
 
newprj creates eight...

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...

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

Popt is a C library for parsing command line parameters.

Qt is a multiplatform C++ GUI application framework developed by Trolltech AS (now "The Qt Company"). Qt for OS/2 is a native version of the Qt Toolkit for the OS/2 Operating System.

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,...

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

An open source C++ GUI framework for easy cross-platform programming.