Re: [boost] cv_state has not been declared

From: Barco You (barcojie_at_[hidden])
Date: 2007-12-02 23:31:33

Thank you, Anthony!
You make me benefit much!

On 11/30/07, Anthony Williams <anthony_w.geo_at_[hidden]> wrote:
>
> Barco You <barcojie <at> gmail.com> writes:
>
> > Sorry, it's 1.34.1  :)
> > what does -pthread mean?  it means libpthread linked, why doesn't it be
> > -lpthread?
>
> gcc has various options for enabling multi-threaded support. These depend
> on the
> version of gcc and the platform. On some platforms/versions it is
> -pthread, on
> others -pthreads, on some it -mthread, and on some -mthreads. You will
> need to
> check the cygwin docs to find which to use (gcc --help -v might help). I
> think
> it's -mthreads.
>
> If all that was required was linking the pthread library, -lpthread would
> indeed
> be sufficient. However, gcc also changes the code it generates, and the
> runtime
> library functions it uses if multi-threaded support is enabled.
>
> Anthony
>
>
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-- 
-------------------------------
Enjoy life!
Barco You