diff -ur x86_64-linux-gnu-gcc-6.3.0.orig/gcc-6.3.0/libsanitizer/configure.tgt x86_64-linux-gnu-gcc-6.3.0/gcc-6.3.0/libsanitizer/configure.tgt
--- x86_64-linux-gnu-gcc-6.3.0.orig/gcc-6.3.0/libsanitizer/configure.tgt	2015-11-23 01:07:18.000000000 -0800
+++ x86_64-linux-gnu-gcc-6.3.0/gcc-6.3.0/libsanitizer/configure.tgt	2019-08-13 15:41:51.394524015 -0700
@@ -21,13 +21,6 @@
 # Filter out unsupported systems.
 TSAN_TARGET_DEPENDENT_OBJECTS=
 case "${target}" in
-  x86_64-*-linux* | i?86-*-linux*)
-	if test x$ac_cv_sizeof_void_p = x8; then
-		TSAN_SUPPORTED=yes
-		LSAN_SUPPORTED=yes
-		TSAN_TARGET_DEPENDENT_OBJECTS=tsan_rtl_amd64.lo
-	fi
-	;;
   powerpc*-*-linux*)
 	;;
   sparc*-*-linux*)