Add emacs .dir-locals.el settings for flycheck mode

.dir-locals.el

@@ -0,0 +1,64 @@
+;;; Directory Local Variables
+;;; For more information see (info "(emacs) Directory Variables")
+
+((c-mode .
+  ((eval .
+	 (set (make-local-variable 'directory-of-current-dir-locals-file)
+	      (file-name-directory (locate-dominating-file default-directory ".dir-locals.el"))
+	      )
+	 )
+   (eval .
+	 (set (make-local-variable 'include-directories)
+	      (list
+
+	       ;; top directory
+	       (expand-file-name
+		(concat directory-of-current-dir-locals-file "./"))
+
+	       ;; current directory
+	       (expand-file-name (concat default-directory "./"))
+
+	       ;; libisc
+	       (expand-file-name
+		(concat directory-of-current-dir-locals-file "lib/isc/unix/include"))
+	       (expand-file-name
+		(concat directory-of-current-dir-locals-file "lib/isc/pthreads/include"))
+	       (expand-file-name
+		(concat directory-of-current-dir-locals-file "lib/isc/include"))
+
+	       ;; libdns
+
+	       (expand-file-name
+		(concat directory-of-current-dir-locals-file "lib/dns/include"))
+
+	       ;; libisccc
+	       (expand-file-name
+		(concat directory-of-current-dir-locals-file "lib/isccc/include"))
+
+	       ;; libisccfg
+	       (expand-file-name
+		(concat directory-of-current-dir-locals-file "lib/isccfg/include"))
+
+	       ;; libns
+	       (expand-file-name
+		(concat directory-of-current-dir-locals-file "lib/ns/include"))
+
+	       ;; libirs
+	       (expand-file-name
+		(concat directory-of-current-dir-locals-file "lib/irs/include"))
+
+	       ;; libbind9
+	       (expand-file-name
+		(concat directory-of-current-dir-locals-file "lib/bind9/include"))
+
+	       (expand-file-name "/usr/local/opt/openssl@1.1/include")
+	       (expand-file-name "/usr/local/opt/libxml2/include/libxml2")
+	       (expand-file-name "/usr/local/include")
+	       )
+	      )
+	 )
+
+   (eval setq flycheck-clang-include-path include-directories)
+   (eval setq flycheck-cpp-include-path include-directories)
+   )
+  ))

lib/isc/win32/.dir-locals.el

@@ -0,0 +1,35 @@
+;;; Directory Local Variables
+;;; For more information see (info "(emacs) Directory Variables")
+
+((c-mode .
+  ((eval .
+	 (set (make-local-variable 'directory-of-current-dir-locals-file)
+	      (file-name-directory (locate-dominating-file default-directory ".dir-locals.el"))
+	      )
+	 )
+   (eval .
+	 (set (make-local-variable 'include-directories)
+	      (list
+	       (expand-file-name
+		(concat directory-of-current-dir-locals-file "../../../"))
+	       (expand-file-name
+		(concat directory-of-current-dir-locals-file "include"))
+	       (expand-file-name
+		(concat directory-of-current-dir-locals-file "../include"))
+	       (expand-file-name
+		(concat directory-of-current-dir-locals-file "../"))
+	       (expand-file-name
+		(concat directory-of-current-dir-locals-file "./"))
+	       (expand-file-name
+		(concat directory-of-current-dir-locals-file "../../dns/include"))
+	       (expand-file-name "/usr/local/opt/openssl@1.1/include")
+	       (expand-file-name "/usr/local/opt/libxml2/include/libxml2")
+	       (expand-file-name "/usr/local/include")
+	       )
+	      )
+	 )
+
+   (eval setq flycheck-clang-include-path include-directories)
+   (eval setq flycheck-cpp-include-path include-directories)
+   )
+  ))

util/merge_copyrights

@@ -55,6 +55,7 @@ while (<CHANGES>) {
 	       \.zone$ |        # zone files
 	       \.conf$ |        # configuration files
 	       \.conf\.in$ |    # configuration files
+	       \.dir-locals\.el | # emacs local variables
 	       /(dnssafe|openssl)/.*\.[ch]$ |	# imported
 	       doc/(draft|expired|rfc)/		# imported
 	     %x);