[Xcb] pthread-stubs pthread_* declaration conflict [was: passing -lpthread for pthread-stubs]

[Samuel Thibault]

Vincent Torri, le Mon 18 Apr 2011 15:17:15 +0200, a écrit :
> On Mon, 18 Apr 2011, Samuel Thibault wrote:
> 
> >Vincent Torri, le Mon 18 Apr 2011 14:48:42 +0200, a écrit :
> >>ok. Though i was thinking that we needed to check if pthread was available
> >>in configure stuff to decide what to do:
> >>
> >>AC_CHECK_FUNCS(funclist, [], [PKG_CONFIG_LIBS='-L${libdir}
> >>-lpthread-stubs'])
> >>
> >>funclist being he funtions described in list.m4. If you want to check
> >>these functions, you have to provide:
> >> * the path for the header pthread.h
> >> * the path and the name for the library.
> >
> >Again, the whole point of pthread-stubs is not to detect what is
> >available through linking normally with libpthread, but to detect what
> >is not available *without* linking with libpthread.
> 
> is available with foo
> 
> is equivalent to
> 
> ! (is not available without foo)

Nope.

> If you don't pass -lpthread, then there will be *always* undef ref when 
> using AC_CHECK_FUNCS(),

Nope.

> unless pthread stuff is in the libc.

Yes, and that's the _*WHOLE*_ point of libpthread-stubs.

Did you actually read README?

Samuel