> We could hunt for pthreadgc1 if gc2 isn't there of course - do you know
> if it's missing anything we might need?

Um, I think that stable version currently used in large numbers about it. 
http://sources.redhat.com/pthreads-win32/announcement.html
However, We were examining only by pthreadGC2. I think that supporting both 
causes confusion. Therefore, I have tried pthreadGC2 by the method of taking 
in to static....

Introduction

first step)
make GC-static
--> libpthreadGC2.a
second step)
copy libpthreadGC2.a to [MinGW]lib.
copy pthread.h, sched.h and semaphore.h to [MinGW]include.

Result)
It did not pass configure. :-(

In order to let it pass 
gcc -o sample.exe sample.c -DPTW32_BUILD_INCLUDE -DPTW32_STATIC_LIB 
   -lpthreadGC2 -lwsock32

But,  by the DLL type, this is satisfactory now.
gcc -o sample.exe sample.c -lpthreadGC2 -lwsock32

So, we should support a static type. Or is there any good idea? 

Regards,
Hiroshi Saito