illusori/emacs-flymake — pull request #5 by arnested (2012-03-25 21:23:50+00:00)
Title: Expand symlinks to file-truename of temp-name

If temp-name was going through symlinks flymake wouldn't discover the
reported errors.

I.e. on Mac OS X `temporary-file-directory' would be something like
"/var/folders/mc/0b33w8gd1z16sjpmn2xy6fpr0000gn/T/" but /var is a
symlink to /private/var.