Avoid generating jsmin.pyc in the source directory.

Copy js2c.py and jsmin.py to intermediate directory first, then invoke the script there. Python generates a .pyc file in that directory.
diff --git a/V8Binding/Android.libv8.mk b/V8Binding/Android.libv8.mk
index 3bb348e..8bf69fb 100644
--- a/V8Binding/Android.libv8.mk
+++ b/V8Binding/Android.libv8.mk
@@ -24,11 +24,18 @@
 
 LOCAL_JS_LIBRARY_FILES := $(addprefix $(LOCAL_PATH)/v8/, $(V8_LOCAL_JS_LIBRARY_FILES))
 
+# Copy js2c.py to intermediates directory and invoke there to avoid generating
+# jsmin.pyc in the source directory
+JS2C_PY := $(intermediates)/js2c.py $(intermediates)/jsmin.py
+$(JS2C_PY): $(intermediates)/%.py : $(LOCAL_PATH)/v8/tools/%.py | $(ACP)
+	@echo "Copying $@"
+	$(copy-file-to-target)
+
 LOCAL_GENERATED_SOURCES :=
 # Generate libraries.cc
 GEN1 := $(intermediates)/libraries.cc $(intermediates)/libraries-empty.cc
-$(GEN1): SCRIPT := $(LOCAL_PATH)/v8/tools/js2c.py
-$(GEN1): $(LOCAL_JS_LIBRARY_FILES)
+$(GEN1): SCRIPT := $(intermediates)/js2c.py
+$(GEN1): $(LOCAL_JS_LIBRARY_FILES) $(JS2C_PY)
 	@echo "Generating libraries.cc"
 	@mkdir -p $(dir $@)
 	python $(SCRIPT) $(GEN1) CORE $(LOCAL_JS_LIBRARY_FILES)
diff --git a/V8Binding/Android.mksnapshot.mk b/V8Binding/Android.mksnapshot.mk
index 235f509..d1379f2 100644
--- a/V8Binding/Android.mksnapshot.mk
+++ b/V8Binding/Android.mksnapshot.mk
@@ -34,10 +34,17 @@
 
 LOCAL_JS_LIBRARY_FILES := $(addprefix $(LOCAL_PATH)/v8/, $(V8_LOCAL_JS_LIBRARY_FILES))
 
+# Copy js2c.py to intermediates directory and invoke there to avoid generating
+# jsmin.pyc in the source directory
+JS2C_PY := $(intermediates)/js2c.py $(intermediates)/jsmin.py
+$(JS2C_PY): $(intermediates)/%.py : $(LOCAL_PATH)/v8/tools/%.py | $(ACP)
+	@echo "Copying $@"
+	$(copy-file-to-target)
+
 # Generate libraries.cc
 GEN2 := $(intermediates)/libraries.cc $(intermediates)/libraries-empty.cc
-$(GEN2): SCRIPT := $(LOCAL_PATH)/v8/tools/js2c.py
-$(GEN2): $(LOCAL_JS_LIBRARY_FILES)
+$(GEN2): SCRIPT := $(intermediates)/js2c.py
+$(GEN2): $(LOCAL_JS_LIBRARY_FILES) $(JS2C_PY)
 	@echo "Generating libraries.cc"
 	@mkdir -p $(dir $@)
 	python $(SCRIPT) $(GEN2) CORE $(LOCAL_JS_LIBRARY_FILES)