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-rw-r--r--modules/prog-c.el13
1 files changed, 11 insertions, 2 deletions
diff --git a/modules/prog-c.el b/modules/prog-c.el
index 728df018..29a341d5 100644
--- a/modules/prog-c.el
+++ b/modules/prog-c.el
@@ -8,8 +8,9 @@
;; Load shape: eager.
;; Eager reason: none necessary; currently eager but should load by C major mode
;; (Phase 6 deferral candidate).
-;; Top-level side effects: six add-hook, package configuration via use-package.
-;; Runtime requires: none (configures packages via use-package).
+;; Top-level side effects: six add-hook, package configuration via use-package;
+;; warns at load if clangd or clang-format is missing.
+;; Runtime requires: system-lib.
;; Direct test load: yes.
;;
;; Modern C programming environment with LSP, tree-sitter, debugging, and formatting.
@@ -59,6 +60,14 @@
(defvar clang-format-path "clang-format"
"Path to clang-format executable.")
+;; Warn at load time when a C tool is missing. The clang-format block
+;; below gates on `:if (executable-find ...)', which evaluates once at
+;; startup — an absent binary silently disables the format key until the
+;; next restart, so this warn is the only visible trace.
+(require 'system-lib) ; for cj/executable-find-or-warn
+(cj/executable-find-or-warn clangd-path "clangd LSP" 'prog-c)
+(cj/executable-find-or-warn clang-format-path "C formatting" 'prog-c)
+
;; -------------------------------- C Mode Setup -------------------------------
;; preferences for C programming following common conventions