[Python-checkins] bpo-36108: Avoid failing the build on race condition in clean (GH-12217)

[Miss Islington (bot)]

https://github.com/python/cpython/commit/34b398559fc47745473a39313a9e2ec17fe1d9ad
commit: 34b398559fc47745473a39313a9e2ec17fe1d9ad
branch: 3.7
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: GitHub <noreply at github.com>
date: 2019-03-07T09:44:53-08:00
summary:

bpo-36108: Avoid failing the build on race condition in clean (GH-12217)

(cherry picked from commit 2f8f56499c20af70ff5037fdbc5d738e56d9eab0)

Co-authored-by: Steve Dower <steve.dower at microsoft.com>

files:
M PCbuild/openssl.props

diff --git a/PCbuild/openssl.props b/PCbuild/openssl.props
index 257cc857d0ec..8c78cd4ab108 100644
--- a/PCbuild/openssl.props
+++ b/PCbuild/openssl.props
@@ -23,6 +23,6 @@
     <Copy SourceFiles="@(_SSLDLL)" DestinationFolder="$(OutDir)" />
   </Target>
   <Target Name="_CleanSSLDLL" BeforeTargets="Clean">
-    <Delete Files="@(_SSLDLL->'$(OutDir)%(Filename)%(Extension)')" />
+    <Delete Files="@(_SSLDLL->'$(OutDir)%(Filename)%(Extension)')" TreatErrorsAsWarnings="true" />
   </Target>
 </Project>
\ No newline at end of file