Allow to disable the zone allocator on Darwin
diff --git a/INSTALL b/INSTALL
index 7c2ed68..9bd1dac 100644
--- a/INSTALL
+++ b/INSTALL
@@ -141,6 +141,10 @@
--disable-experimental
Disable support for the experimental API (*allocm()).
+--disable-zone-allocator
+ Disable zone allocator for Darwin. This means jemalloc won't be hooked as
+ the default allocator on OSX/iOS.
+
--enable-utrace
Enable utrace(2)-based allocation tracing. This feature is not broadly
portable (FreeBSD has it, but Linux and OS X do not).