(require 'package) 
(add-to-list 'package-archives
             '("melpa" . "https://melpa.org/packages/"))
(when (< emacs-major-version 24)
  ;; For important compatibility libraries like cl-lib
  (add-to-list 'package-archives '("gnu" . "http://elpa.gnu.org/packages/")))
(package-initialize) 

(custom-set-variables
 ;; custom-set-variables was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 '(inhibit-startup-screen t)
 '(package-selected-packages (quote (flycheck use-package))))
(custom-set-faces
 ;; custom-set-faces was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 )

(use-package flycheck
  :ensure t
  :init (global-flycheck-mode))

(flycheck-define-checker vhdl-tool
  "A VHDL syntax checker, type checker and linter using VHDL-Tool.

See URL `http://vhdltool.com'."
  :command ("vhdl-tool" "client" "lint" "--compact" "--stdin" "-f" source
            )
  :standard-input t
  :error-patterns
  ((warning line-start (file-name) ":" line ":" column ":w:" (message) line-end)
   (error line-start (file-name) ":" line ":" column ":e:" (message) line-end))
  :modes (vhdl-mode))
  
(add-to-list 'flycheck-checkers 'vhdl-tool)