On Wed, 29 May 2019 20:20:05 -0300 Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx> wrote: > > So this totally fails to work for me with any version of sphinx, and I'm > > not enough of a Perl person to figure it out. Sometimes I'll see the > > sphinx-build output, i.e.: > > > > sphinx-build 1.8.4 > > > > and sometimes (like with 2.0) I don't, but I never get -jauto regardless. > > Hmm... with 2.0.0 --version prints the version. > > $ sphinx-build --version > sphinx-build 2.0.0 Yup. The point is that I see the sphinx-build output *in the docs-build output", not when I run it standalone (where it does the expected thing). > > Not sure what's going on here? > > Do you have SPHINXOPTS already set on your environment? If so, Makefile > will not override the existing environment. Yeah, I had it set to -j1 because I want to wait as long as possible for my docs builds :) No, I didn't have it set separately, made a point of that. > Here, if I call it by hand (replacing $$1 by $1), it does the right > thing. For example: > > 1.8.4: > > $ sphinx-build --version > sphinx-build 1.8.4 > $ perl -e 'open IN,"sphinx-build --version |"; while (<IN>) { if (m/([\d\.]+)/) { print "-jauto\n" if ($1 >= "1.7") } ;} close IN' > -jauto $ perl -e 'open IN,"sphinx-build --version |"; while (<IN>) { if (m/([\d\.]+)/) { print "-jauto\n" if ($1 >= "1.7") } ;} close IN' sphinx-build 1.8.4 $ It works properly with 2.0.1 - but only on the command line; I still don't get the right behavior in a docs build. Most weird. This is an Fedora 30 system, FWIW. jon