配置Emacs Flymake直接调用g ++

Question

在编写简单的一个文件C ++代码时，我通常直接调用g ++。默认情况下，Flymake似乎假设存在带有检查语法目标的Makefile。如何配置Flymake直接调用g ++，例如：

g++ -c a.cpp

如果可以修改答案以包含编译器标志，那就更好了

非常感谢

Answer 1

您可以使用以下flymake配置直接调用g ++。

(require 'flymake)

(defun flymake-cc-init ()
  (let* ((temp-file   (flymake-init-create-temp-buffer-copy
                       'flymake-create-temp-inplace))
         (local-file  (file-relative-name
                       temp-file
                       (file-name-directory buffer-file-name))))
    (list "g++" (list "-Wall" "-Wextra" "-fsyntax-only" local-file))))

(push '("\\.cpp$" flymake-cc-init) flymake-allowed-file-name-masks)
(add-hook 'c++-mode-hook 'flymake-mode)

当我拨打flymake-allowed-file-name-masks

时，我获得了以下屏幕截图

以下是评论版。

;; Import flymake
(require 'flymake)

;; Define function
(defun flymake-cc-init ()
  (let* (;; Create temp file which is copy of current file
         (temp-file   (flymake-init-create-temp-buffer-copy
                       'flymake-create-temp-inplace))
         ;; Get relative path of temp file from current directory
         (local-file  (file-relative-name
                       temp-file
                       (file-name-directory buffer-file-name))))

    ;; Construct compile command which is defined list.
    ;; First element is program name, "g++" in this case.
    ;; Second element is list of options.
    ;; So this means "g++ -Wall -Wextra -fsyntax-only tempfile-path"
    (list "g++" (list "-Wall" "-Wextra" "-fsyntax-only" local-file))))

;; Enable above flymake setting for C++ files(suffix is '.cpp')
(push '("\\.cpp$" flymake-cc-init) flymake-allowed-file-name-masks)

;; Enable flymake-mode for C++ files.
(add-hook 'c++-mode-hook 'flymake-mode)