From 2439a048b0b98b654d6b4a68146eb65283c575e8 Mon Sep 17 00:00:00 2001
From: Ben Boeckel <ben.boeckel@kitware.com>
Date: Wed, 20 Jan 2021 14:04:25 -0500
Subject: FindHDF5: avoid writing to the output when testing h5cc

The execution of this tool can output error logs to the output during
configure. This can then be caught by CTest and flagged as an error
during the build.
---
 Modules/FindHDF5.cmake | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Modules/FindHDF5.cmake b/Modules/FindHDF5.cmake
index 25f5a1f..6bbc821 100644
--- a/Modules/FindHDF5.cmake
+++ b/Modules/FindHDF5.cmake
@@ -360,6 +360,8 @@ function( _HDF5_invoke_compiler language output_var return_value_var version_var
   execute_process(
     COMMAND ${HDF5_${language}_COMPILER_EXECUTABLE} ${test_file}
     WORKING_DIRECTORY ${scratch_dir}
+    OUTPUT_VARIABLE output
+    ERROR_VARIABLE output
     RESULT_VARIABLE return_value
     )
   if(return_value)
-- 
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