Introduced rpm packages building tools.

pkg/Makefile

@@ -0,0 +1,17 @@
+#!/usr/bin/make
+
+VERSION ?= $(shell grep 'define NXT_VERSION' ../src/nxt_main.h		\
+		| sed -e 's/^.*"\(.*\)".*/\1/')
+
+RELEASE ?= 1
+
+default:
+	@echo "available targets: rpm"
+
+rpm:
+	@cd rpm && VERSION=$(VERSION) RELEASE=$(RELEASE) make all
+
+clean:
+	@cd rpm && make clean
+
+.PHONY: default rpm clean