From 52aecc0c382384d5bea3c18d7894e80bc573d8d7 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Mon, 1 Aug 2016 11:49:17 -0400
Subject: [PATCH] ExternalProject: Ignore macOS .DS_Store files in tarball
 extraction

Do not consider a top-level `.DS_Store` file when deciding whether a
tarball contains exactly one directory whose contents should be used as
the resulting top-level of the extraction.

Fixes #16218.

Suggested-by: Patrice Kouame
---
 Modules/ExternalProject.cmake | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Modules/ExternalProject.cmake b/Modules/ExternalProject.cmake
index 7e179aa68..4929848db 100644
--- a/Modules/ExternalProject.cmake
+++ b/Modules/ExternalProject.cmake
@@ -993,6 +993,7 @@ endif()
 #
 message(STATUS \"extracting... [analysis]\")
 file(GLOB contents \"\${ut_dir}/*\")
+list(REMOVE_ITEM contents \"\${ut_dir}/.DS_Store\")
 list(LENGTH contents n)
 if(NOT n EQUAL 1 OR NOT IS_DIRECTORY \"\${contents}\")
   set(contents \"\${ut_dir}\")