Re: lock, tls, and single-threaded applications

[Bruno Haible]

Eric Blake wrote:
> Next I'm wondering if we should add a module which invokes
> gl_DISABLE_THREADS, as well as pulls in the unlocked-io module, for the
> benefit of projects that are known to be single-threaded, as it is
> slightly easier to add a module to the list of imports than it is to
> modify configure.ac to manually invoke gl_DISABLE_THREADS.

I don't think this would be a good idea, precisely because it is so easy,
and because importing extra modules from gnulib otherwise is a no-brainer.
But the decision whether to use gl_DISABLE_THREADS must be a conscious one.
For example, if coreutils/src/sort.c becomes multithreaded, coreutils cannot
use this macro.

Bruno