Add Windows specific settings

custom/setup-windows.el

@@ -0,0 +1,25 @@
+;; Windows performance tweaks
+;;
+(when (boundp 'w32-pipe-read-delay)
+  (setq w32-pipe-read-delay 0))
+;; Set the buffer size to 64K on Windows (from the original 4K)
+(when (boundp 'w32-pipe-buffer-size)
+  (setq irony-server-w32-pipe-buffer-size (* 64 1024)))
+
+;; Set pipe delay to 0 to reduce latency of irony
+(setq w32-pipe-read-delay 0)
+
+;; From "setting up irony mode on Windows" :
+;; Make sure the path to clang.dll is in emacs' exec_path and shell PATH.
+(setenv "PATH"
+        (concat
+         "C:\\msys64\\usr\\bin" ";"
+         "C:\\msys64\\mingw64\\bin" ";"
+         (getenv "PATH")
+         )
+)
+(setq exec-path (append '("c:/msys64/usr/bin" "c:/alt/msys64/mingw64/bin")
+                        exec-path))
+
+
+(provide 'setup-windows)