https://www.youtube.com/watch?v=NVopDink4uQ
https://gitlab.com/petsc/petsc/merge_requests/2207 > On Oct 23, 2019, at 8:34 PM, Matthew Knepley via petsc-dev > <petsc-dev@mcs.anl.gov> wrote: > > On Wed, Oct 23, 2019 at 5:08 PM Faibussowitsch, Jacob > <jfaibussowit...@anl.gov> wrote: > I think Jed is referring to the fact that configure appears to do all of > these checks after doing the compiler, > > How would you verify that Z works without the compiler? Again, this whole > discussion is not listening. > > Matt > > MPI, MathEnv, etc which take a long time. The change would be to check > missing external library dependencies before even doing the compiler checks. > > Best, > > Jacob > >> On Oct 23, 2019, at 4:03 PM, Matthew Knepley <knep...@gmail.com> wrote: >> >> On Wed, Oct 23, 2019 at 4:59 PM Jed Brown <j...@jedbrown.org> wrote: >> Matthew Knepley <knep...@gmail.com> writes: >> >> > That is an unreliable check for Z. You would not eliminate the case >> > where you give --with-Z, but the check fails, so Z is not available, >> > but you do not find out until checking X or Y. >> >> You can verify that Z works in a fraction of a second, but building X >> may take minutes. Work bottom up, verify everything that is given >> before building anything. >> >> That is exactly what we do now. What are you talking about? >> >> Matt >> >> -- >> What most experimenters take for granted before they begin their experiments >> is infinitely more interesting than any results to which their experiments >> lead. >> -- Norbert Wiener >> >> https://www.cse.buffalo.edu/~knepley/ > > > > -- > What most experimenters take for granted before they begin their experiments > is infinitely more interesting than any results to which their experiments > lead. > -- Norbert Wiener > > https://www.cse.buffalo.edu/~knepley/