Remove "jobserver unavailable: using -j1. Add '+' to parent make rule" warning when building the pdf documentation

[strogdon]

When building the pdf documentation every time the sage docbuilder runs a Makefile to convert .tex source to .pdf files there appears a jobserver warning. The first occurrence is:

[reference] processing references.tex... index
[reference] resolving references...
[reference] done
[reference] writing... done
[reference] copying TeX support files... copying TeX support files...
[reference] done
[reference] The LaTeX files are in local/share/doc/sage/latex/en/reference/references.
[reference] Run 'make' in that directory to run these through (pdf)latex
[reference] (use `make latexpdf' here to do that automatically).
LaTeX file written to /local/sage-git/sage/local/share/doc/sage/latex/en/reference/references
make[5]: warning: jobserver unavailable: using -j1.  Add '+' to parent make rule.
latexmk -pdf -dvi- -ps-  'references.tex'

Component: documentation

Author: Steven Trogdon

Branch/Commit: 7533334

Reviewer: Dima Pasechnik

Issue created by migration from https://trac.sagemath.org/ticket/32928

[strogdon]

Branch: u/strogdon/jobserver

[strogdon]

Commit: ef44d98

[strogdon]

New commits:

ef44d98

remove jobserver warnings when buildig the pdf documentation

[strogdon]

comment:3

After installing the above branch the building of references.pdf now appears as

[reference] processing references.tex... index
[reference] resolving references...
[reference] done
[reference] writing... done
[reference] copying TeX support files... copying TeX support files...
[reference] done
[reference] The LaTeX files are in local/share/doc/sage/latex/en/reference/references.
[reference] Run 'make' in that directory to run these through (pdf)latex
[reference] (use `make latexpdf' here to do that automatically).
LaTeX file written to /local/sage-git/sage/local/share/doc/sage/latex/en/reference/references
latexmk -pdf -dvi- -ps-  'references.tex'

[strogdon]

Author: Steven Trogdon

[strogdon]

comment:4

Apparently close_fds=True is the default. I believe close_fds=False was the default at one time.

[dimpase]

Reviewer: Dima Pasechnik

[dimpase]

comment:5

Looks good, thanks.

[kiwifb]

comment:6

Thanks for reviewing Dima.

[vbraun]

comment:7

Merge conflict

[kiwifb]

Changed commit from ef44d98 to 7533334

[kiwifb]

Changed branch from u/strogdon/jobserver to u/fbissey/jobserver

[kiwifb]

comment:8

Rebasing on 9.5.beta8. Some spaces where introduced in the touched lines by another ticket.

---

New commits:

7533334

Merge branch 'develop' into jobserver

[kiwifb]

comment:9

Should go back to positive review. Only trivial changes were made.

[strogdon]

comment:10

Yes, I tried earlier in the day to push these rebased changes but was unable to push a new branch? Thanks for fixing this.

[kiwifb]

comment:11

There was a git/trac outage in the last 24 hours I believe. That may have been the reason.

[vbraun]

Changed branch from u/fbissey/jobserver to 7533334