diff --git a/libsanitizer/ChangeLog b/libsanitizer/ChangeLog
index 70a66cddf6f..b0a4546f960 100644
--- a/libsanitizer/ChangeLog
+++ b/libsanitizer/ChangeLog
@@ -1,5 +1,7 @@
 2017-01-24  Jakub Jelinek  <jakub@redhat.com>
 
+	* configure.tgt: Enable tsan and lsan on powerpc64{,le}-*-linux*.
+
 	PR sanitizer/79168
 	* merge.sh (change_comment_headers): Don't remove 2nd and 3rd line
 	if the 3rd line doesn't contain 'The LLVM Compiler Infrastructure'
diff --git a/libsanitizer/configure.tgt b/libsanitizer/configure.tgt
index 8d884f4bf52..c59b2cd919b 100644
--- a/libsanitizer/configure.tgt
+++ b/libsanitizer/configure.tgt
@@ -1,5 +1,5 @@
 # -*- shell-script -*-
-#   Copyright (C) 2012 Free Software Foundation, Inc.
+#   Copyright (C) 2012-2017 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -31,6 +31,11 @@ case "${target}" in
 	fi
 	;;
   powerpc*-*-linux*)
+	if test x$ac_cv_sizeof_void_p = x8; then
+		TSAN_SUPPORTED=yes
+		LSAN_SUPPORTED=yes
+		TSAN_TARGET_DEPENDENT_OBJECTS=tsan_rtl_ppc64.lo
+	fi
 	;;
   sparc*-*-linux*)
 	;;