Buildroot integration possible using autotools

* Add option to not install a init script

* Added autotools default install prefix

* Add autotools ${DESTDIR} to the install paths

* Add option to specify platform type

Makefile

@@ -119,21 +119,21 @@ $(CONFIG_FILE):
 install: all install-gateway install-initscripts
 
 install-gateway: 
-	@echo "Installing $(GATEWAY) to $(GATEWAY_DIR)"
-	@install -m 0755 $(GATEWAY) $(GATEWAY_DIR)
+	@echo "Installing $(GATEWAY) to ${DESTDIR}$(GATEWAY_DIR)"
+	@install -m 0755 $(GATEWAY) ${DESTDIR}$(GATEWAY_DIR)
 
 install-initscripts:
 ifeq ($(INIT_SYSTEM), systemd)
-	install -m0644 initscripts/mysgw.systemd /etc/systemd/system/mysgw.service
-	@sed -i -e "s|%gateway_dir%|${GATEWAY_DIR}|g" /etc/systemd/system/mysgw.service
+	install -m0644 initscripts/mysgw.systemd ${DESTDIR}/etc/systemd/system/mysgw.service
+	@sed -i -e "s|%gateway_dir%|${GATEWAY_DIR}|g" ${DESTDIR}/etc/systemd/system/mysgw.service
 	systemctl daemon-reload
 	@echo "MySensors gateway has been installed, to add to the boot run:"
 	@echo "  sudo systemctl enable mysgw.service"
 	@echo "To start the gateway run:"
 	@echo "  sudo systemctl start mysgw.service"
 else ifeq ($(INIT_SYSTEM), sysvinit)
-	install -m0755 initscripts/mysgw.sysvinit /etc/init.d/mysgw
-	@sed -i -e "s|%gateway_dir%|${GATEWAY_DIR}|g" /etc/init.d/mysgw
+	install -m0755 initscripts/mysgw.sysvinit ${DESTDIR}/etc/init.d/mysgw
+	@sed -i -e "s|%gateway_dir%|${GATEWAY_DIR}|g" ${DESTDIR}/etc/init.d/mysgw
 	@echo "MySensors gateway has been installed, to add to the boot run:"
 	@echo "  sudo update-rc.d mysgw defaults"
 	@echo "To start the gateway run:"

configure

@@ -14,6 +14,7 @@ Help:
 Building options:
     --soc=[BCM2835|BCM2836|AM33XX|A10|A13|A20|H3]
                                 SoC type to be used. [configure autodetected]
+    --platform-type=<TYPE>      Type of platform
     --cpu-flags=<CPUFLAGS>      CPU defining/optimizing flags to be used. [configure autodetected]
     --extra-cflags=<CFLAGS>     Extra C flags passed to C compilation. []
     --extra-cxxflags=<CXXFLAGS> Extra C++ flags passed to C++ compilation. []
@@ -238,6 +239,9 @@ for opt do
     --soc=*)
         SOC="$optarg"
         ;;
+    --platform-type=*)
+        PT="$optarg"
+        ;;
     --cpu-flags=*)
         CPUFLAGS="$optarg"
         ;;
@@ -271,6 +275,12 @@ for opt do
     --prefix=*)
         PREFIX="$optarg"
         ;;
+    --exec-prefix=*)
+        PREFIX="$optarg"
+        ;;
+    --no_init_system*)
+        NO_INIT="1"
+        ;;
     --gateway-dir=*)
         GATEWAY_DIR="$optarg"
         ;;
@@ -403,6 +413,10 @@ if [ -z "${SOC}" ]; then
     echo "[OK] machine detected: SoC=${SOC}, Type=${TYPE}, CPU=${CPU}, REV=${REV}."
 fi
 
+if [ "${PT}" ]; then
+    TYPE=${PT}
+fi
+
 if [ -z "${CPUFLAGS}" ]; then
     CPUFLAGS=$(gcc_cpu_flags $SOC)
 fi
@@ -466,7 +480,9 @@ fi
 LDFLAGS="-pthread $LDFLAGS"
 CPPFLAGS="$CPUFLAGS $CPPFLAGS"
 
-if [ -x /usr/bin/systemctl ] || [ -x /bin/systemctl ]; then
+if [ "${NO_INIT}" ];  then
+    echo "[OK] no init system chosen."
+elif [ -x /usr/bin/systemctl ] || [ -x /bin/systemctl ]; then
     INIT_SYSTEM=systemd
     echo "[OK] init system detected: systemd"
 elif [ -f /etc/init.d/cron ] && [ ! -h /etc/init.d/cron ]; then