cygwin: proper dcron 4.4 + C patch

component/dcron/buildout.cfg

@@ -18,6 +18,13 @@ url = ${:_profile_base_location_}/${:filename}
 filename = dcron-4.4.noroot.no.globals.patch
 download-only = true
 
+[dcron-patch-cygwin-ioctl]
+recipe = hexagonit.recipe.download
+md5sum = 394afc79f62936c772adcad8f1071abd
+url = ${:_profile_base_location_}/${:filename}
+filename = dcron-4.4.cygwin.ioctl.patch
+download-only = true
+
 [dcron]
 recipe = slapos.recipe.cmmi
 url = http://www.jimpryor.net/linux/releases/dcron-4.4.tar.gz
@@ -31,9 +38,9 @@ make-options =
 post-make-hook = ${dcron-hooks-download:location}/${dcron-hooks-download:filename}:post_make_hook
 
 [dcron:cygwin]
-share = /usr
-promises =
-  /usr/sbin/cron.exe
+patches =
+  ${dcron-patch-nonroot:location}/${dcron-patch-nonroot:filename}
+  ${dcron-patch-cygwin-ioctl:location}/${dcron-patch-cygwin-ioctl:filename}
 
 [dcron-output]
 # Shared binary location to ease migration

component/dcron/dcron-4.4.cygwin.ioctl.patch

+--- dcron-4.4.org/main.c	2010-01-18 16:27:31.000000000 +0100
++++ dcron-4.4/main.c	2013-09-19 14:31:19.590201000 +0200
+@@ -235,7 +235,6 @@
+ 		if (setsid() < 0)
+ 			perror("setsid");
+ 		if ((fd = open("/dev/tty", O_RDWR)) >= 0) {
+-			ioctl(fd, TIOCNOTTY, 0);
+ 			close(fd);
+ 		}
+