[PATCH -perfbook 0/8] Use rsvg-convert for SVG --> PDF conversion

Hi Paul,

[Cc 0/8 and 8/8 to Leo, Patch 8/8 touches gitlab-ci.yml]

Frequent crashes of Inkscape I encountered in 2023, which was mitigated
in commit f307e19f2be0 ("Prevent inkscape from interacting with desktop
manager"), made me look into alternative SVG --> PDF converters.

It turns out that recent versions of rsvg-convert work reasonably well
for perfbook.  By "recent versions", I mean 2.52.5 and 2.57.x.
rsvg-convert is a light-weight CLI command and is much faster than inkscape.

Sequential SVG --> PDF conversion time I get from
"make cleanfigs-svg; env time make figs":

                elapsed
Inkscape:        21.45s
rsvg-convert:     6.05s

So patches 1/8--4/8 add rules in Makefile for using rsvg-convert if it
is recent enough.

One caveat: There is a SVG cartoon drawn by an ancient version of Inkscape,
for which very recent versions of rsvg-convert produce distorted background
of outlined text.

Patch 5/8 retouches the cartoon and put a SVG compatible with librsvg as
cartoons/r-2023-Memory-barriers.svg.

Patches 6/8 and 7/8 adjust FAQ-BUILD and Dockerfiles accordingly.

Patch 8/8 updates gitlab-ci.yml.  It needs an explicit ACK or Tested-by:
from Leo before applying.

Finally, this series wouldn't affect those of you who don't have
rsvg-convert.


        Thanks, Akira
--
Akira Yokosawa (8):
  Makefile: Add rules to use rsvg-convert for SVG --> PDF conversion
  Makefile: Don't use rsvg-convert < 2.57
  Makefile: Allow rsvg-convert 2.52
  Makefile: Use rsvg-convert anyway if no inkscape is found
  cartoons: Retouch r-2014-Memory-barrier.svg
  FAQ-BUILD: List package for rsvg-convert in package lists
  docker: Add packages for rsvg-convert
  gitlab-ci.yml: Install librsvg instead of inkscape

 FAQ-BUILD.txt                      |   23 +-
 Makefile                           |   48 +-
 cartoons/r-2023-Memory-barrier.svg | 1130 ++++++++++++++++++++++++++++
 cpu/overview.tex                   |    2 +-
 docker/Dockerfile                  |    4 +-
 docker/Dockerfile.fedora           |    7 +-
 utilities/gitlab-ci.yml            |    2 +-
 7 files changed, 1198 insertions(+), 18 deletions(-)
 create mode 100644 cartoons/r-2023-Memory-barrier.svg


base-commit: 1ea46c6d43475fbdf97404dec28a58036d505bc3
-- 
2.34.1