Merge pull request #328 from larskotthoff/maketarget

make Makefile GNU make v3.82 compatible

Makefile

@@ -4,22 +4,19 @@ NODE_PATH ?= ./node_modules
 JS_COMPILER = $(NODE_PATH)/uglify-js/bin/uglifyjs
 JS_TESTER = $(NODE_PATH)/vows/bin/vows
 
+JS_FILES = \
+    d3.js \
+    d3.chart.js \
+    d3.layout.js \
+    d3.csv.js \
+    d3.geo.js \
+    d3.geom.js \
+    d3.time.js
+
 all: \
-	d3.js \
+  $(JS_FILES) \
-	d3.min.js \
+  $(JS_FILES:.js=.min.js) \
-	d3.chart.js \
+  package.json
-	d3.chart.min.js \
-	d3.layout.js \
-	d3.layout.min.js \
-	d3.csv.js \
-	d3.csv.min.js \
-	d3.geo.js \
-	d3.geo.min.js \
-	d3.geom.js \
-	d3.geom.min.js \
-	d3.time.js \
-	d3.time.min.js \
-	package.json
 
 # Modify this rule to build your own custom release.
 # Run `make d3.custom.min.js` to produce the minified version.
@@ -245,7 +242,7 @@ test: all
 	@rm -f $@
 	$(JS_COMPILER) < $< > $@
 
-d3.js d3%.js: Makefile
+d3.%: Makefile
 	@rm -f $@
 	cat $(filter %.js,$^) > $@
 	@chmod a-w $@