libvpx: Pull from upstream

source/libvpx/test/tools_common.sh

 #!/bin/sh
 ##
 ##  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
 ##
 ##  Use of this source code is governed by a BSD-style license
 ##  that can be found in the LICENSE file in the root of the source
 ##  tree. An additional intellectual property rights grant can be found
 ##  in the file PATENTS.  All contributing project authors may
 ##  be found in the AUTHORS file in the root of the source tree.
 ##
@@ skipping 243 matching lines @@
   fi
 
   # User requested test listing: Dump test names and return.
   if [ "${VPX_TEST_LIST_TESTS}" = "yes" ]; then
     for test_name in $tests_to_filter; do
       echo ${test_name}
     done
     return
   fi
 
+  # Don't bother with the environment tests if everything else was disabled.
+  [ -z "${tests_to_filter}" ] && return
+
   # Combine environment and actual tests.
   local tests_to_run="${env_tests} ${tests_to_filter}"
 
   check_git_hashes
 
   # Run tests.
   for test in ${tests_to_run}; do
     test_begin "${test}"
     vlog "  RUN  ${test}"
     "${test}"
@@ skipping 146 matching lines @@
   VPX_TEST_RAND=${VPX_TEST_RAND}
   VPX_TEST_RUN_DISABLED_TESTS=${VPX_TEST_RUN_DISABLED_TESTS}
   VPX_TEST_SHOW_PROGRAM_OUTPUT=${VPX_TEST_SHOW_PROGRAM_OUTPUT}
   VPX_TEST_TEMP_ROOT=${VPX_TEST_TEMP_ROOT}
   VPX_TEST_VERBOSE_OUTPUT=${VPX_TEST_VERBOSE_OUTPUT}
   YUV_RAW_INPUT=${YUV_RAW_INPUT}
   YUV_RAW_INPUT_WIDTH=${YUV_RAW_INPUT_WIDTH}
   YUV_RAW_INPUT_HEIGHT=${YUV_RAW_INPUT_HEIGHT}"
 
 fi  # End $VPX_TEST_TOOLS_COMMON_SH pseudo include guard.