我尝试安装auto-complete和auto-complete-clang-async。当我写std::之类的内容时，emacs说“自动完成不活动”。
我的自动完成配置是：
(require 'auto-complete)
(require 'auto-complete-config)
(add-to-list 'ac-dictionary-directories "~/.emacs.d/elpa/auto-complete/dict")
(set-default 'ac-c-sources
'(ac-source-abbrev
ac-source-dictionary
ac-source-yasnippet
ac-source-words-in-buffer
ac-source-words-in-same-mode-buffers
ac-source-semantic))
(ac-config-default)
(dolist (m '(c-mode c++-mode java-mode))
(add-to-list 'ac-modes m))
(global-auto-complete-mode t)
;auto-complete-clang-async
(require 'auto-complete-clang-async)
(defun ac-cc-mode-setup ()
(setq ac-clang-complete-executable "~/.emacs.d/clang-complete")
(setq ac-sources '(ac-source-clang-async))
(ac-clang-launch-completion-process)
)
(defun my-ac-config ()
(add-hook 'c-mode-common-hook 'ac-cc-mode-setup)
(add-hook 'auto-complete-mode-hook 'ac-common-setup)
(global-auto-complete-mode t))
(my-ac-config)
错误是：
auto-complete error: (void-variable ac-source-c)