kitty: add version 0.49.0

Take over maintenance of a local copy of the SBo kitty package, built
from the official upstream release tarballs on GitHub instead of the
SBo maintainer's self-hosted mirror.

Changes against the SBo script:

- VERSION 0.38.1 -> 0.49.0
- DOWNLOAD points at github.com/kovidgoyal/kitty releases
- MAINTAINER/EMAIL set to danix
- drop librsync from REQUIRES: upstream 0.49 no longer links it, the
  rsync kitten uses its own implementation on top of libxxhash, which
  ships in Slackware
- drop google-go-lang from REQUIRES: go is a base system package on
  -current

The build itself is unchanged; setup.py still accepts linux-package,
--libdir-name and --ignore-compiler-warnings, and the tarball still
ships prebuilt man pages and html docs.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/kitty/README b/kitty/README
new file mode 100644
index 0000000..b038ff2
--- /dev/null
+++ b/kitty/README
@@ -0,0 +1,12 @@
+kitty (fast, featureful, GPU-based terminal emulator)
+
+kitty is a terminal emulator for X11 and Wayland [1], which offloads
+the rendering to the GPU [2] and supports modern terminal features. It
+also supports tiling multiple terminal windows without using an extra
+program like screen or tmux.
+
+[1] For Wayland support, it may be necessary to add the following 
+    line to ~/.config/kitty/kitty.conf:
+    linux_display_server wayland
+
+[2] Requires hardware-accelerated OpenGL support.