EMX (programming environment)

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

EMX (Eberhard Mattes eXtender; also known as emx+gcc) is a programming environment for MS-DOS and OS/2.[1][2] It allows creating and executing of 32-bit mode applications, presenting a POSIX API and, on OS/2, access to the OS/2 APIs.


The EMX package consists of:

  • The emx.exe program, a DOS extender, that allows running a 32-bit mode application in DOS and emx.dll and helper dlls in single threaded (for DOS compatibility) and multithreaded forms for running under OS/2.
  • A C library that provides a POSIX API, for use on both DOS and OS/2.
  • Additional libraries for OS/2.
  • Ports of the C and C++ compilers of GNU GCC, the GNU binutils, gdb, GNU make, and other tools for program development.
  • Tools for creating OS/2 shared libraries.


The latest version is emx 0.9d, released in 1998 and last updated in March 2001.

See also[edit]


  1. ^ J. Martin and H. A. Muller, "C to Java migration experiences," Software Maintenance and Reengineering, 2002. Proceedings. Sixth European Conference on, Budapest, 2002, pp. 143-153. doi: 10.1109/CSMR.2002.995799 online
  2. ^ Eric S. Raymond (23 September 2003). The Art of UNIX Programming. Addison-Wesley Professional. p. 67. ISBN 978-0-13-246588-5. In the early 1990s, developers in the OS/2 community began to migrate to a Unix-inspired environment called EMX that emulated POSIX interfaces.

External links[edit]