build: compatibility for debian.

configure

@@ -5,7 +5,7 @@
 
 set -eu
 
-DISTRIBUTION="$(lsb_release --id --short)"
+DISTRIBUTION="${DIST:-$(lsb_release --id --short)}"
 readonly DISTRIBUTION="${DISTRIBUTION,,}"
 readonly ROOT=.build
 
@@ -63,15 +63,13 @@ configure() {
 
 			;;
 
-		debian|ubuntu)
+		debian|ubuntu|whonix)
-			if [[ "$DISTRIBUTION" == "debian" ]]; then
+			if [[ "$DISTRIBUTION" != "ubuntu" ]]; then
-				_msg "$DISTRIBUTION does not have etc tunable."
-				sed -i -e '/etc/d' "$ROOT/apparmor.d/tunables/global"
-
 				_msg "$DISTRIBUTION does not support abi 3.0 yet."
 				find "$ROOT/apparmor.d" -type f -exec sed -e '/abi /d' -i {} \;
 
 				cp -a dists/debian/abstractions/* $ROOT/apparmor.d/abstractions
+				cp -a dists/debian/tunables/* $ROOT/apparmor.d/tunables
 			fi
 
 			_msg "Configure libexec."

dists/debian/tunables/etc

@@ -0,0 +1,25 @@
+# ------------------------------------------------------------------
+#
+#    Copyright (C) 2020 Christian Boltz
+#
+#    This program is free software; you can redistribute it and/or
+#    modify it under the terms of version 2 of the GNU General Public
+#    License published by the Free Software Foundation.
+#
+# ------------------------------------------------------------------
+
+# @{etc_ro} contains a space-separated list of the system configuration directories.
+# Traditionally this means /etc/, but when using a read-only / filesystem and/or
+# with the goal of having only user-modified config files in /etc/, directories
+# like /usr/etc/ get introduced for storing the default config.
+
+# @{etc_ro} contains read-only directories with configuration files.
+# Do not use @{etc_ro} in rules that allow write access.
+@{etc_ro}=/etc/ /usr/etc/
+
+# @{etc_rw} contains directories where writing to configuration files is allowed.
+@{etc_rw}=/etc/
+
+# Also, include files in tunables/etc.d/ for site-specific adjustments to
+# @{etc_ro} and @{etc_rw}.
+include if exists <tunables/etc.d>