From 1cd9ef4f0f4a844b59f94f458381bb5e57461151 Mon Sep 17 00:00:00 2001
From: Aron Xu <happyaron.xu@gmail.com>
Date: Mon, 26 Feb 2018 18:23:49 +0800
Subject: [PATCH] Recommends: linux-libc-dev (< ${LINUX_NEXT})

This tries to prevent unexpected upgrades of kernel that is not known
to be supported by the packaged version of ZFS/SPL.
---
 debian/control      | 1 +
 debian/get_next.sh  | 8 ++++++++
 debian/linux_compat | 1 +
 debian/rules        | 4 ++--
 4 files changed, 12 insertions(+), 2 deletions(-)
 create mode 100755 debian/get_next.sh
 create mode 100644 debian/linux_compat

diff --git a/debian/control b/debian/control
index a1fb61d..c3abf8d 100644
--- a/debian/control
+++ b/debian/control
@@ -24,6 +24,7 @@ Depends: dkms (>> 2.2.1.0),
          lsb-release,
          ${misc:Depends}
 Recommends: spl (>= ${source:Upstream-Version}),
+         linux-libc-dev (< 4.16)
 Provides: spl-modules
 Description: Solaris Porting Layer kernel modules for Linux
  The Solaris Porting Layer (SPL) is a Linux kernel module which provides
diff --git a/debian/get_next.sh b/debian/get_next.sh
new file mode 100755
index 0000000..890fd45
--- /dev/null
+++ b/debian/get_next.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+SUPPORT=$(cat debian/linux_compat)
+MAJOR=$(echo $SUPPORT|cut -d'.' -f1)
+MINOR=$(echo $SUPPORT|cut -d'.' -f2)
+NEXT=$((MINOR+1))
+
+echo "${MAJOR}.${NEXT}"
diff --git a/debian/linux_compat b/debian/linux_compat
new file mode 100644
index 0000000..6ae0dcb
--- /dev/null
+++ b/debian/linux_compat
@@ -0,0 +1 @@
+4.15
diff --git a/debian/rules b/debian/rules
index b2fc86c..c7f2608 100755
--- a/debian/rules
+++ b/debian/rules
@@ -22,7 +22,7 @@ pmodules = $(PACKAGE)-modules-$(non_epoch_version)
 	dh $@ --with dkms,autoreconf --parallel
 
 override_dh_auto_configure:
-	@cp debian/control.in debian/control
+	sed "s/@LINUX_COMPAT@/linux-libc-dev \(< $(shell debian/get_next.sh)\)/" debian/control.in > debian/control
 
 	@# Embed the downstream version in the module.
 	@sed \
@@ -61,7 +61,7 @@ override_dh_dkms:
 override_dh_auto_clean:
 	dh_auto_clean
 	@if test -e META.orig; then mv META.orig META; fi
-	cp debian/control.in debian/control
+	sed "s/@LINUX_COMPAT@/linux-libc-dev \(< $(shell debian/get_next.sh)\)/" debian/control.in > debian/control
 
 # ------------
 
-- 
2.39.2