posix threads (pthread32) undefined references

Sat Oct 31 06:26:00 GMT 1998

Ben Elliston wrote:
>> Hi Stipe,
>> > > And, I just stumbled across this alternative alternative at :
> > > < ftp://egcs.cygnus.com/pub/pthreads-win32/ >
>> Please use the CVS repository we have on sourceware.cygnus.com, if you
> can. The snapshot that is there is for people who have no access to CVS,
> but it makes life harder.
>> > I have configure/make the libpthread32.a library using cygwin32 b19.3
> > egcs, gcc from cdk.exe). When I tried to compile the distributed test
> > programs I get the following undefined reference errors:
>> > % gcc create1.c -I.. -L.. -lpthread32
> > ../libpthread32.a(create.o)(.text+0x19a):create.c: undefined reference
> > to
> > `_beginthreadex'
> > ../libpthread32.a(exit.o)(.text+0xbe):exit.c: undefined reference to
> > `_endthreadex'
> > ../libpthread32.a(mutex.o)(.text+0x11e):mutex.c: undefined reference to
> > `TryEnterCriticalSection'
>> Ah yes. Are you using Windows 95 or NT?
>> There has been a recent discussion about why these aren't in Cygwin's
> library stubs and I'm not sure what the outcome was. Anyone?

Hi,
_beginthreadex and _endthreadex are part of the MS C runtime and not
the OS (I think). TryEnterCriticalSection does not even exist in
win95, so programs using the pthread32 library would not run on
that platform and that would be a bad thing.
Anders Norlander
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