Makefile: generate symlinks.list, a list of included tools.

Callers including toolbox can then use this list for generating
their own symlinks however they want.

Change-Id: Iab5c45efe9386e43ecf1d5488aec9ab758705b26
diff --git a/Makefile b/Makefile
index 064a5f3..058d135 100644
--- a/Makefile
+++ b/Makefile
@@ -54,11 +54,16 @@
 
 LOCAL_MODULE:= toolbox
 
-all: ${LOCAL_MODULE} symlinks
+all: ${LOCAL_MODULE} symlinks symlinks.list
 
 symlinks: $(SYMLINKS)
 	for i in $(TOOLS); do ln -sf $(TOOLBOX_BINARY) $$i; done
 
+symlinks.list:
+	rm -f $@ $@.new
+	for i in $(TOOLS); do echo $$i; done >$@.new
+	mv $@.new $@
+
 install: symlinks
 	cp -P $(LOCAL_MODULE) $(TOOLS) $(TARGET_OUT)
 
@@ -82,7 +87,8 @@
 	$(CC) -o $(TARGET_OUT)/$(LOCAL_MODULE) $(DEFINES) $(OBJFILES) $(LIBRARIES)
 
 clean:
-	rm $(TARGET_OUT)/*.o $(TARGET_OUT)/$(LOCAL_MODULE) $(TOOLS_H)
+	rm $(TARGET_OUT)/*.o $(TARGET_OUT)/$(LOCAL_MODULE) $(TOOLS_H) \
+		symlinks.list
 
 # Make #!/system/bin/toolbox launchers for each tool.
 #