Well, Haproxy uses directly a handmade Makefile and it might be possible to write a short c code test to detect such features (just thinking aloud).
On 21 February 2018 at 14:15, Dmitry Sivachenko <trtrmi...@gmail.com> wrote: > > > On 21 Feb 2018, at 16:33, David CARLIER <devne...@gmail.com> wrote: > > > > Might be irrelevant idea, but is it not possible to detect it via simple > code test into the Makefile eventually ? > > > Did you mean configure? :)