Allow to enable ivsalloc independently
diff --git a/INSTALL b/INSTALL
index 9bd1dac..6e371ce 100644
--- a/INSTALL
+++ b/INSTALL
@@ -79,6 +79,12 @@
--enable-debug
Enable assertions and validation code. This incurs a substantial
performance hit, but is very useful during application development.
+ Implies --enable-ivsalloc.
+
+--enable-ivsalloc
+ Enable validation code, which verifies that pointers reside within
+ jemalloc-owned chunks before dereferencing them. This incurs a substantial
+ performance hit.
--disable-stats
Disable statistics gathering functionality. See the "opt.stats_print"