diff -Nru xorg-server-1.20.1.orig/configure xorg-server-1.20.1/configure
--- xorg-server-1.20.1.orig/configure	2018-08-07 18:31:15.000000000 +0200
+++ xorg-server-1.20.1/configure	2018-08-18 19:48:22.107953995 +0200
@@ -30480,7 +30480,7 @@
 	fi
 
 	case $host_os in
-		cygwin*)
+		cygwin* | midipix*)
 			XWIN_SERVER_NAME=XWin
 
 $as_echo "#define HAS_DEVWINDOWS 1" >>confdefs.h