add initial build system

.gitignore

@@ -0,0 +1,2 @@
+/.rsconscache
+/build

Rakefile

@@ -0,0 +1,21 @@
+require "rscons"
+
+task :lib do
+  Rscons::Environment.new do |env|
+    env["build_root"] = "build/lib"
+    env.build_root = env["build_root"]
+    sources = Dir["src/**/*.cpp"]
+    env["CPPPATH"] << "include"
+    env["CPPPATH"] << "test/gl3w"
+    env["CPPDEFINES"] << %[GLCXX_GL_INCLUDE="gl3w.h"]
+    env["CXXFLAGS"] += %w[-Wall -std=gnu++11]
+    env.Library("${build_root}/lib.a", sources)
+  end
+end
+
+task :test do
+end
+
+task :clean do
+  Rscons.clean
+end