emacs: improve compat for (version< "27" emacs-version0

- eshell: it seems that eshell-hist-mode-map is new in 27
- mm-uu: :extend is new in 27. trying to use it pre 27 causes severe
  breakage of ERC among other things

diff --git a/.emacs.d/init.el b/.emacs.d/init.el
index 539b045..2228c31 100644 (file)
--- a/.emacs.d/init.el
+++ b/.emacs.d/init.el
@@ -1036,8 +1036,12 @@ This function is intended for use with `ivy-ignore-buffers'."
                ("C-S-l" . b/eshell-clear)
                ("M-r"   . counsel-esh-history)
                ;; ([tab]   . company-complete)
-               :map eshell-hist-mode-map
-               ("M-r" . counsel-esh-history)))
+               )
+    (if (version< "27" emacs-version)
+        (bind-keys :map eshell-hist-mode-map
+                   ("M-r" . counsel-esh-history))
+      (bind-keys :map eshell-mode-map
+                 ("M-r" . counsel-esh-history))))
 
   :hook (eshell-mode . b/eshell-setup)
   :custom
@@ -2492,7 +2496,8 @@ https://csclub.uwaterloo.ca/~abandali")
 
 (use-package mm-uu
   :config
-  (set-face-attribute 'mm-uu-extract nil :extend t)
+  (when (version< "27" emacs-version)
+    (set-face-attribute 'mm-uu-extract nil :extend t))
   :custom
   (mm-uu-diff-groups-regexp
    "\\(gmane\\|gnu\\|l\\)\\..*\\(diff\\|commit\\|cvs\\|bug\\|dev\\)"))