build: Preparation for native OSX version

Change-Id: Ib3f79384ecd64c7f6ac567c8b989d99f7ff9d691
diff --git a/waf-tools/sparkle.py b/waf-tools/sparkle.py
index f186199..2b0958a 100644
--- a/waf-tools/sparkle.py
+++ b/waf-tools/sparkle.py
@@ -29,7 +29,7 @@
                 # Download to local path and retry
                 Logs.info("Sparkle framework not found, trying to download it to 'build/'")
 
-                urllib.urlretrieve("http://sparkle.andymatuschak.org/files/Sparkle%201.5b6.zip", "build/Sparkle.zip")
+                urllib.urlretrieve("https://github.com/sparkle-project/Sparkle/releases/download/1.7.1/Sparkle-1.7.1.zip", "build/Sparkle.zip")
                 if os.path.exists('build/Sparkle.zip'):
                     # try:
                         subprocess.check_call(['unzip', '-qq', 'build/Sparkle.zip', '-d', 'build/Sparkle'])