On Mon, Mar 02, 2026 at 05:48:40PM +0100, Florian Weimer wrote: > > I think this is an overwhelming evidence in favour of Autoconf > > supporting this feature, documented, or not, by the upstream (i.e. Apple). > > The community knows how to use it, and uses it, there is no need to be > > patronising here. By not supporting it Autotools shoot themselves in the > > foot, forcing users/developers of multi-platform OpenMP-using applications > > to look elsewhere for a build system supporting this > > feature out of the box. > > As I said, Meson supports it out of the box. Cmake supports it too. > > Okay, then it's a bit weird that it's not mentioned at all in the Apple > documentation.
I can only speculate that once you bought enough support from them, they'd tell you. After all, "-Xpreprocessor -fopenmp" somehow has leaked out as a working option. Apparently instead of "-Xpreprocessing" one can use "-Xclang", although it appears to be less popular. I don't know the difference between these two - perhaps AC_OPENMP (and libtool?) should also test for "-Xclang -fopenmp"? "-Xclang" is briefly mentioned in clang docs: https://clang.llvm.org/docs/UsersManual.html Best, Dima
signature.asc
Description: PGP signature
