From 30cb628ecb31484015136bf6065c9c40f59a9297 Mon Sep 17 00:00:00 2001
From: Bill Hoffman <bill.hoffman@kitware.com>
Date: Wed, 28 Jan 2015 17:08:41 -0500
Subject: [PATCH] CTestCoverageCollectGCOV: Fix handling of large file counts

Use the --files-from option to tar to handle lots of files.
---
 Modules/CTestCoverageCollectGCOV.cmake | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/Modules/CTestCoverageCollectGCOV.cmake b/Modules/CTestCoverageCollectGCOV.cmake
index f6616e0df..f8058cd2c 100644
--- a/Modules/CTestCoverageCollectGCOV.cmake
+++ b/Modules/CTestCoverageCollectGCOV.cmake
@@ -130,9 +130,16 @@ function(ctest_coverage_collect_gcov)
   # tar up the coverage info with the same date so that the md5
   # sum will be the same for the tar file independent of file time
   # stamps
+  string(REPLACE ";" "\n" gcov_files "${gcov_files}")
+  string(REPLACE ";" "\n" label_files "${label_files}")
+  file(WRITE "${coverage_dir}/coverage_file_list.txt"
+    "${gcov_files}
+${coverage_dir}/data.json
+${label_files}
+")
   execute_process(COMMAND
     ${CMAKE_COMMAND} -E tar cvfj ${GCOV_TARBALL}
-    "--mtime=1970-01-01 0:0:0 UTC" ${gcov_files}
-    ${coverage_dir}/data.json  ${label_files}
+    "--mtime=1970-01-01 0:0:0 UTC"
+    --files-from=${coverage_dir}/coverage_file_list.txt
     WORKING_DIRECTORY ${binary_dir})
 endfunction()