It is unused since v2.2.6 (2016)
https://sourceforge.net/p/saga-gis/bugs/224/

jasper has several unfixed CVE and seems unmaintained
Upstream open bug to replace it with OpenJPEG is:
https://bugs.kde.org/show_bug.cgi?id=364231

jasper has unfixed CVE

Unused since:
xbmc/xbmc@424c513

Update the version of `cctools` on darwin.  The older version fails
to work on some modern packages, such as `bazel 1.1`.

jasper has unfixed CVE
Upstream has no plan to switch to openjpeg AFAICT

jasper has many security issues and it's only used for some
old Redcine cameras. See:
LibRaw/LibRaw#69

jasper has many unfixed CVEs, upstream disable its use by default
opencv/opencv#14058

Many memory issues remain unfixed or partially fixed:
CVE-2018-18873 CVE-2018-19539 CVE-2018-19540 CVE-2018-19541
CVE-2018-9252 CVE-2018-19542 CVE-2018-19543 CVE-2018-20570
CVE-2018-20584 CVE-2018-20622 CVE-2018-9252

Debian/Ubuntu, OpenSuSE and Gentoo removed it entirely. See:
jasper-software/jasper#208

cython/cython#2752 has already been accepted
upstream, is minimally invasive (only adds a feature, shouldn't break
any existing code) and is needed for the sage python3 update. Sage needs
this capability because it defines its own integer type.

b78e840 tried to make the script better but used the wrong test
syntax: [[ 113 > 99 ]] is false. This caused the librsvg not being added
to $GDK_PIXBUF_MODULE_FILE.

Fixes: #73586 (comment)

gdb: Fix safe path for cross

gegl_0_4: disabling jasper, fixing build

This reverts commit fa4bbef.

The update seems to be no longer available. See
#74388 (comment).

Revert "python.pkgs.Cython: 0.29.14 -> 0.29.15"