Add make rule for component.json.

Makefile

@@ -5,7 +5,8 @@ GENERATED_FILES = \
 	d3.min.js \
 	src/format/format-localized.js \
 	src/time/format-localized.js \
-	bower.json
+	bower.json \
+	component.json
 
 all: $(GENERATED_FILES)
 
@@ -35,9 +36,9 @@ d3.min.js: d3.js
 	@rm -f $@
 	bin/uglify $< > $@
 
-bower.json: bin/bower package.json
+%.json: bin/% package.json
 	@rm -f $@
-	bin/bower > $@
+	bin/$* > $@
 	@chmod a-w $@
 
 clean:

bin/component

 #!/usr/bin/env node
 
-var fs = require("fs")
-  , package = require("../package.json")
+var fs = require("fs"),
+    package = require("../package.json");
 
 console.log(JSON.stringify({
   "name": "d3",
@@ -16,7 +16,5 @@ console.log(JSON.stringify({
   ],
   "dependencies": {},
   "development": {},
-  // component doesn't yet support multiple licenses
-  "license": package.licenses[0].type,
+  "license": package.licenses[0].type
 }, null, 2));
-

bower.json

@@ -13,6 +13,7 @@
     ".travis.yml",
     "Makefile",
     "bin",
+    "component.json",
     "d3.min.js",
     "index-browserify.js",
     "index.js",