MinGW ("Minimalist GNU for Windows") is a compiler toolchain for creating native Microsoft Windows applications. It provides a port of the GNU Compiler Collection (GCC) and related tools that generate executables targeting the Windows API without requiring a compatibility layer or emulation environment.
MinGW was developed to support native Windows development using GNU tools. Unlike POSIX-based environments such as Cygwin, MinGW targets the Windows API directly and does not attempt to provide a full Unix-like runtime environment.
It includes ports of essential GNU development tools, including GCC and GNU Binutils, along with a minimal Unix-like shell environment (MSYS) used to assist with build processes.
Later projects and distributions such as Mingw-w64 and MSYS2 provide modern, actively maintained environments for native Windows builds using GNU toolchains.
Architecture
MinGW is designed to produce native Windows executables rather than provide a POSIX compatibility layer; unlike Cygwin-based toolchains, it links against standard Microsoft DLLs such as MSVCRT rather than a Unix emulation runtime.
- The linker (GNU <code>ld</code>) links object files with system libraries and runtime components.
- Executables are produced in the Portable Executable (PE) format and run directly on Windows without a compatibility layer.
The use of the Portable Executable format distinguishes MinGW-generated binaries from typical Unix systems, which commonly use the ELF (Executable and Linkable Format) binary format.
Comparison with Cygwin
Although both Cygwin and MinGW can be used to build software for Windows, they have different design goals. Cygwin provides a POSIX compatibility layer and a Unix-like runtime environment on Windows, while MinGW targets the Windows API directly and produces native Windows executables. and the GNU Fortran runtime libraries for Fortran applications.
History
Early development
MinGW originated in the late 1990s to supply a minimal GNU-based development environment for Microsoft Windows.