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I have the following lines in my ~/.emacs.d/init.el (custom-set-variables '(flymake-allowed-file-name-masks (quote ( ("\\.cc\\'" flymake-simple-make-init) ("\\.cpp\\'" flymake-simple-make-init))))) (add-hook 'find-file-hook 'flymake-find-file-hook) When I open a C++ file that has a proper Makefile in the same folder, I get on-the-fly compilation and error reporting (Flymake will check the syntax and report errors and warnings during code editing). The Makefile has a check-syntax target: .PHONY: check-syntax check-syntax: $(CXX) -Wall -Wextra -pedantic -fsyntax-only $(CHK_SOURCES) The problem is that when I open a .cc file that has no corresponding Makefile I get an annoying dialog box that warns me about flymake being disabled. So if I launch emacs *.cc in a folder with 20 C++ files I get 20 modal dialog boxes saying something like No buildfile found for [...]. Flymake will be switched off . Is there some hook I can use to disable that warning? Can you provide sample elisp code and explanation on how you found the proper hook?

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