Explicitly set system default for $PATH to
ensure we have a clean build environment (OSX installer)
diff --git a/Mac/BuildScript/build-installer.py b/Mac/BuildScript/build-installer.py
index f120ada..fbbb484 100755
--- a/Mac/BuildScript/build-installer.py
+++ b/Mac/BuildScript/build-installer.py
@@ -436,6 +436,9 @@
                                                     ev, os.environ[ev])
                 del os.environ[ev]
 
+    os.environ['PATH'] = '/bin:/sbin:/usr/bin:/usr/sbin'
+    print "Setting default PATH: %s"%(os.environ['PATH'])
+
 
 def parseOptions(args=None):
     """