Update rscons

Rsconscript

@@ -3,30 +3,29 @@ configure do
   check_program "x86_64-w64-mingw32-gcc"
 end
 
-build do
-  class Image < Builder
-    def run(options)
-      unless @cache.up_to_date?(@target, nil, @sources, @env)
-        print_run_message("Image <target>#{@target}<reset>", nil)
-        system(*%W[dd if=/dev/zero of=#{@target} bs=1k count=1440])
-        system(*%W[mformat -i #{@target} -f 1440 ::])
-        system(*%W[mmd -i #{@target} ::/EFI])
-        system(*%W[mmd -i #{@target} ::/EFI/BOOT])
-        system(*%W[mcopy -i #{@target} #{@sources.first} ::/EFI/BOOT])
-        @cache.register_build(@target, nil, @sources, @env)
-      end
-      true
+class Image < Builder
+  def run(options)
+    unless @cache.up_to_date?(@target, nil, @sources, @env)
+      print_run_message("Image <target>#{@target}<reset>", nil)
+      system(*%W[dd if=/dev/zero of=#{@target} bs=1k count=1440])
+      system(*%W[mformat -i #{@target} -f 1440 ::])
+      system(*%W[mmd -i #{@target} ::/EFI])
+      system(*%W[mmd -i #{@target} ::/EFI/BOOT])
+      system(*%W[mcopy -i #{@target} #{@sources.first} ::/EFI/BOOT])
+      @cache.register_build(@target, nil, @sources, @env)
     end
-  end
-  Environment.new do |env|
-    env.add_builder(Image)
-    env["CC"] = "x86_64-w64-mingw32-gcc"
-    env["CPPPATH"] += %w[/usr/include/efi /usr/include/efi/x86_64]
-    env["CFLAGS"] += %w[-ffreestanding]
-    env["LDFLAGS"] += %w[-nostdlib -Wl,-dll -shared -Wl,--subsystem,10 -e efi_main]
-    env["LIBS"] += %w[gcc]
-    env["sources"] = glob("*.c")
-    env.Program("^/BOOTX64.EFI", "${sources}")
-    env.Image("^/efi-loader.img", "^/BOOTX64.EFI")
+    true
   end
 end
+
+env do |env|
+  env.add_builder(Image)
+  env["CC"] = "x86_64-w64-mingw32-gcc"
+  env["CPPPATH"] += %w[/usr/include/efi /usr/include/efi/x86_64]
+  env["CFLAGS"] += %w[-ffreestanding]
+  env["LDFLAGS"] += %w[-nostdlib -Wl,-dll -shared -Wl,--subsystem,10 -e efi_main]
+  env["LIBS"] += %w[gcc]
+  env["sources"] = glob("*.c")
+  env.Program("^/BOOTX64.EFI", "${sources}")
+  env.Image("^/efi-loader.img", "^/BOOTX64.EFI")
+end