--- Makefile	(Asterisk 13.20)
+++ Makefile	(working copy)
@@ -934,2 +934,6 @@
 		./build_tools/install_subst contrib/init.d/rc.archlinux.asterisk  "$(DESTDIR)/etc/init.d/asterisk"; \
+	elif [ -f /etc/slackware-version ]; then \
+		./build_tools/install_subst contrib/init.d/rc.slackware.asterisk  "$(DESTDIR)/etc/rc.d/rc.asterisk"; \
+	elif [ -f /etc/os-release ] && [ "slackware" = "$(shell . /etc/os-release && echo $$ID)" ] ; then \
+		./build_tools/install_subst contrib/init.d/rc.slackware.asterisk  "$(DESTDIR)/etc/rc.d/rc.asterisk"; \
 	elif [ -d "$(DESTDIR)/Library/LaunchDaemons" ]; then \
@@ -941,4 +945,2 @@
 		fi; \
-	elif [ -f /etc/slackware-version ]; then \
-		echo "Slackware is not currently supported, although an init script does exist for it."; \
 	else \
--- contrib/scripts/install_prereq	(Asterisk 13.20)
+++ contrib/scripts/install_prereq	(working copy)
@@ -193 +193,5 @@
-		echo "/usr/local/lib" > /etc/ld.so.conf.d/usr_local.conf
+		if test -d /etc/ld.so.conf.d; then
+			echo "/usr/local/lib" > /etc/ld.so.conf.d/usr_local.conf
+		else # for example: Slackware 14.2
+			echo "/usr/local/lib" > /etc/ld.so.conf
+		fi
@@ -206 +210,5 @@
-			echo "/usr/local/lib" > /etc/ld.so.conf.d/usr_local.conf
+			if test -d /etc/ld.so.conf.d; then
+				echo "/usr/local/lib" > /etc/ld.so.conf.d/usr_local.conf
+			else # for example: Slackware 14.2
+				echo "/usr/local/lib" > /etc/ld.so.conf
+			fi
@@ -248,2 +256,8 @@
-if [ -f /etc/slackware-version ]; then
-	unsupported_distro='Slackware'
+if [ -f /etc/slackware-version ] || ([ -f /etc/os-release ] && . /etc/os-release && [ "$ID" = "slackware" ]); then
+	echo >&2 "$0: Your distribution (Slackware) is currently not supported. Aborting. Try manually:"
+	# libedit requires a newer version than Slackware 14.2, for example Slackware-current
+	# or you build it manually: <http://thrysoee.dk/editline/>
+	echo >&2 "$0: # slackpkg install make gcc pkg-config libedit util-linux sqlite libxml2 patch wget"
+	# required for libjansson
+	echo >&2 "$0: # ./contrib/scripts/install_prereq install-unpackaged"
+	exit 1