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copied!<p>Right, got it now; sorry about the earlier confusion.</p> <p>Taking a quick look through flymake.el, for *.c files, the 'make' invocation ultimately comes from here:</p> <pre><code>(defun flymake-get-make-cmdline (source base-dir) (list "make" (list "-s" "-C" base-dir (concat "CHK_SOURCES=" source) "SYNTAX_CHECK_MODE=1" "check-syntax"))) </code></pre> <p>That gets called by <code>flymake-simple-make-init</code>, which is called because that's what <code>*.c</code> files are mapped to by <code>flymake-allowed-file-name-masks</code>.</p> <p>So, the <em>right</em> answer would be to modify <code>flymake-allowed-file-name-masks</code> to map <code>*.c</code> files to a different init defun, then write that defun to call rake the way you want. There are a bunch of those defuns already written for various things, and most of them are pretty short and sweet -- so even if you don't know Emacs Lisp, you could probably get something to work with a minimum of futzing. (The <em>really really right</em> answer would be to change <code>flymake-simple-make-init</code> so that the command name was read from a defcustom variable, then submit that change back upstream...)</p> <p>The quick-and-dirty answer, given that you said all you need to do is call 'rake' with the same args as 'make', would be to grab a copy of flymake.el, stick it early in your <code>load-path</code>, and munge the 'make' string in <code>flymake-get-make-cmdline</code> to read 'rake' instead. That'll at least get you to the next step...</p>

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