Hi Florian, > > 1) I understand that it's only for glibc >= 2.34 on Linux (NPTL), > > right? Not on Hurd (HTL)? > > Yes, Hurd hasn't been integrated. > > > 2) /usr/include/gnu/lib-names.h still defines LIBPTHREAD_SO. > > How about not defining LIBPTHREAD_SO, since linking with it is supposed > > to be a no-op in these newer glibc versions? > > I'm not sure if this is the right way, given that the file still exists > for all currently supported targets.
Thanks for the rapid answers. > An alternative would be to add a macro to <pthread.h>, such as > PTHREAD_IN_LIBC. This would be useful, yes. Like there is a <gnu/stubs.h> that gives meta- information about functions that are stubs, it is useful to have a way to find out whether a library is a stub. For cross-compilation scenarios, implementing it through a macro in some header file is better than implementing it through some file in /lib/ on the file system. Bruno
