The patch is here in git:
http://git.savannah.gnu.org/cgit/automake.git/commit/?id=74cdef7897da220bf062957ff9699815681441ef
Dear Paul,
thank for looking at the problem, looking at the patch and introducing a nice
solution!
I tried your patch here in my build environment and I do not see any problems.
Thank you!
Friedrich
Thanks, I installed the attached patch, which has the more-usual
approach of a uniquely-named temporary.
From 28b4fdb0ea4c540f1b7bcb90675e365e3aa11beb Mon Sep 17 00:00:00 2001
From: Paul Eggert
Date: Sat, 23 Aug 2014 07:55:28 -0700
Subject: [PATCH] build: fix race in parallel builds
Reported by