system/s6: allow openrc's sysinit to define early services

system/s6/APKBUILD

@@ -2,7 +2,7 @@
 # Maintainer: Laurent Bercot <ska-adelie@skarnet.org>
 pkgname=s6
 pkgver=2.7.2.0
-pkgrel=1
+pkgrel=2
 pkgdesc="skarnet.org's small & secure supervision software suite"
 url="https://skarnet.org/software/$pkgname/"
 arch="all"
@@ -53,5 +53,5 @@ doc() {
 }
 
 sha512sums="0ab98c44324054effa0754efd117b3126a53fac7096979aacffd7d86128c5cb1f714205e30ca4e561ca3740646d1f36eb53b9e30d139d7ce4dc1b8cfb3e33123  s6-2.7.2.0.tar.gz
-b4919f76498f86257e13210010a84284dd8574db062b96bcc527c0c5dcc2a35716ff0f3c4d23cb3ec7eed416f16aeec31247b1fda3bd06c1a8f6fd65cf32c6da  s6-svscanboot
+bad19965aa8ea138cdf5688db9ae05fc7ce2111ac0945b5b0e78cda55ad290602f28ac8b52aae395ca5e857f32e9be4d6df882286b362ba7008a52b29472ff1e  s6-svscanboot
 fb60b841da03583ba9f0f0541b45e4cf88fa5311b26376042e951317428dcaa6c81bb6c739c7a442ef0d36e1581a29cb9c4fb2d87411268fb23a033130fc8051  agetty-run"

system/s6/s6-svscanboot

@@ -40,6 +40,17 @@ if
 }
 
 
+# Also link the early services defined in sysinit, if any
+
+if
+{
+  if -t { test -d /run/early-services }
+  forbacktickx -pnd"\n" i { ls -1 -U /run/early-services }
+    importas -u i i
+    ln -nsf ../early-services/$i /run/service/$i
+}
+
+
 # Create the catch-all logger servicedir directly in the scandir
 # (It's too fundamental to be made configurable as an early service.)