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Can I get Unix's pthread.h to compile in Windows?

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Can pthreads be used on Windows?

Windows does not support the pthreads standard natively, therefore the Pthreads4w project seeks to provide a portable and open-source wrapper implementation. It can also be used to port Unix software (which uses pthreads) with little or no modification to the Windows platform.

How do I run pthread on Windows?

Here is the procedure. After opening the installation manager go to all packages and select the select packages named using mingw32-pthreads-w32 and select them for installation. Then go to the installation -> Apply changes to install new packages. The you can use pthread.

How do I compile a pthread program?

To compile C program with pthread. h library, you have to put -lpthread just after the compile command gcc thread. c -o thread, this command will tell to the compiler to execute program with pthread.

Does MinGW support pthread?

The MinGW has already support POSIX threads, In the "MinGW Installation Manager", we can install the pthreads dev package and pthreads lib.


pthread.h is a header for the Unix/Linux (POSIX) API for threads. A POSIX layer such as Cygwin would probably compile an app with #include <pthreads.h>.

The native Windows threading API is exposed via #include <windows.h> and it works slightly differently to Linux's threading.

Still, there's a replacement "glue" library maintained at http://sourceware.org/pthreads-win32/ ; note that it has some slight incompatibilities with MinGW/VS (e.g. see here).


As @Ninefingers mentioned, pthreads are unix-only. Posix only, really.

That said, Microsoft does have a library that duplicates pthreads:

Microsoft Windows Services for UNIX Version 3.5

Library Download


pthread.h isn't on Windows. But Windows has extensive threading functionality, beginning with CreateThread.

My advice is don't get caught looking at WinAPI through the lens of another system's API. These systems are different. It's like insisting on riding the Win32 bike with your comfortable Linux bike seat. Well, the seat might not fit right and in some cases it'll just fall off.

Threads pretty much work the same on different systems, you have ThreadPools and mutexes. Having worked with both pthreads and Windows threads, I can say the Windows threading offers quite a bit more functionality than pthread does.

Learning another API is pretty easy, just think in terms of the concepts (mutex, etc), then look up how to create one of those on MSDN.


Just pick up the TDM-GCC 64x package. (It constains both the 32 and 64 bit versions of the MinGW toolchain and comes within a neat installer.) More importantly, it contains something called the "winpthread" library.

It comprises of the pthread.h header, libwinpthread.a, libwinpthread.dll.a static libraries for both 32-bit and 64-bit and the required .dlls libwinpthread-1.dll and libwinpthread_64-1.dll(this, as of 01-06-2016).

You'll need to link to the libwinpthread.a library during build. Other than that, your code can be the same as for native Pthread code on Linux. I've so far successfully used it to compile a few basic Pthread programs in 64-bit on windows.

Alternatively, you can use the following library which wraps the windows threading API into the pthreads API: pthreads-win32.

The above two seem to be the most well known ways for this.

Hope this helps.


There are, as i recall, two distributions of the gnu toolchain for windows: mingw and cygwin.

I'd expect cygwin work - a lot of effort has been made to make that a "stadard" posix environment.

The mingw toolchain uses msvcrt.dll for its runtime and thus will probably expose msvcrt's "thread" api: _beginthread which is defined in <process.h>