Index: lib/asan/asan_flags.inc
===================================================================
--- lib/asan/asan_flags.inc
+++ lib/asan/asan_flags.inc
@@ -148,3 +148,5 @@
           "(WARNING: USE AT YOUR OWN RISK!)")
 ASAN_FLAG(bool, use_odr_indicator, false,
           "Use special ODR indicator symbol for ODR violation detection")
+ASAN_FLAG(bool, check_dynamic_rt_prereqs, true,
+          "Check that dynamic ASan runtime comes first in initial library list")
Index: lib/asan/asan_linux.cc
===================================================================
--- lib/asan/asan_linux.cc
+++ lib/asan/asan_linux.cc
@@ -111,7 +111,7 @@
 }
 
 void AsanCheckDynamicRTPrereqs() {
-  if (!ASAN_DYNAMIC)
+  if (!ASAN_DYNAMIC || !flags()->check_dynamic_rt_prereqs)
     return;
 
   // Ensure that dynamic RT is the first DSO in the list
Index: test/asan/TestCases/Linux/asan_dlopen_test.cc
===================================================================
--- test/asan/TestCases/Linux/asan_dlopen_test.cc
+++ test/asan/TestCases/Linux/asan_dlopen_test.cc
@@ -2,6 +2,8 @@
 //
 // RUN: %clangxx %s -DRT=\"%shared_libasan\" -o %t -ldl
 // RUN: not %run %t 2>&1 | FileCheck %s
+// RUN: %env_asan_opts=check_dynamic_rt_prereqs=true not %run %t 2>&1 | FileCheck %s
+// RUN: %env_asan_opts=check_dynamic_rt_prereqs=false %run %t 2>&1
 // REQUIRES: asan-dynamic-runtime
 // XFAIL: android