refactor!: deprecate IS-* OS constants

BREAKING CHANGE: This deprecates the IS-(MAC|WINDOWS|LINUX|BSD) family
of global constants in favor of a native `featurep` check:

  IS-MAC      ->  (featurep :system 'macos)
  IS-WINDOWS  ->  (featurep :system 'windows)
  IS-LINUX    ->  (featurep :system 'linux)
  IS-BSD      ->  (featurep :system 'bsd)

The constants will stick around until the v3 release so folks can still
use it -- and there are still some modules that use it, but I'll phase
those uses out gradually.

Fix: #7479
This commit is contained in:
Henrik Lissner 2023-12-05 17:05:13 -05:00
parent d38787edf4
commit 659f7bfc71
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52 changed files with 150 additions and 120 deletions

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@ -32,8 +32,8 @@ capture, the end position, and the output buffer.")
;; This is set to `nil' by default, which causes a wrong-type-arg error
;; when you use `markdown-open'. These are more sensible defaults.
markdown-open-command
(cond (IS-MAC "open")
(IS-LINUX "xdg-open"))
(cond ((featurep :system 'macos) "open")
((featurep :system 'linux) "xdg-open"))
;; A sensible and simple default preamble for markdown exports that
;; takes after the github asthetic (plus highlightjs syntax coloring).