Qt + OpenMP missing pthreadGC2.dll

[Sanuden]

I'm trying to get an OpenMP application to compile using Qt Creator (SDK 2010.01) in Windows and after getting everything to compile, when I try to run the application I get an error message: "The program can't start because pthreadGC2.dll is missing from your computer. Try reinstalling the program to fix this problem." I figured this might just be a path issue so I did a search in the Qt installation folder for the missing dll and unfortunately it doesn't seem to be present. I was wondering if this is something that I need to compile independently and doesn't come packaged in Qt's mingw by default?

FYI, the pro file I'm using is:

#-------------------------------------------------
#
# Project created by QtCreator 2010-01-29T09:32:03
#
#-------------------------------------------------
 
QT       -= gui
 
TARGET = OmpTest
CONFIG   += console
CONFIG   -= app_bundle
 
QMAKE_CXXFLAGS += -fopenmp
 
TEMPLATE = app
 
SOURCES += main.cpp
 
LIBS += -lgomp

#-------------------------------------------------
#
# Project created by QtCreator 2010-01-29T09:32:03
#
#-------------------------------------------------

QT       -= gui

TARGET = OmpTest
CONFIG   += console
CONFIG   -= app_bundle

QMAKE_CXXFLAGS += -fopenmp

TEMPLATE = app

SOURCES += main.cpp

LIBS += -lgomp

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and the only source file is:

#include <omp.h>
#include <stdio.h>
 
int main(int argc, char *argv[])
{
    #pragma omp parallel
    printf("Hello from thread %d, nthreads %d\n", omp_get_thread_num(), omp_get_num_threads());
}

#include <omp.h>
#include <stdio.h>

int main(int argc, char *argv[])
{
    #pragma omp parallel
    printf("Hello from thread %d, nthreads %d\n", omp_get_thread_num(), omp_get_num_threads());
}

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Thanks in advance.

[Sanuden]

In case anyone is also having this problem, I found this website which gave me a clue where to look for the pthreads library. Once I downloaded the source code for the latest version (2.8.0) from ftp://sourceware.org/pub/pthreads-wi...release.tar.gz, I compiled using Msys with the command "make clean CG". That produced the pthreadGC2.dll that I was missing, and once I copied the dll into the release folder of my Qt Project (where the executable was running from) everything worked fine.