Export of internal Abseil changes

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1639d4832e961761060e61196e45948e25dc2676 by Derek Mauro <dmauro@google.com>:

Delete GCC 4.8 test script. GCC 4.8 is no longer supported.

PiperOrigin-RevId: 264485899

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2a9b2182646b6c6675dce614dcce2c18174303d3 by Derek Mauro <dmauro@google.com>:

Make btree_test work with exceptions both enabled and disabled

PiperOrigin-RevId: 264473656
GitOrigin-RevId: 1639d4832e961761060e61196e45948e25dc2676
Change-Id: Ica58a2328fa261ecc4c4be410f68f97942074025

ci/linux_gcc-4.8_libstdcxx_cmake.sh

@@ -1,61 +0,0 @@
-#!/bin/bash
-#
-# Copyright 2019 The Abseil Authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#    https://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# TODO(absl-team): This script isn't fully hermetic because
-# -DABSL_USE_GOOGLETEST_HEAD=ON means that this script isn't pinned to a fixed
-# version of GoogleTest. This means that an upstream change to GoogleTest could
-# break this test. Fix this by allowing this script to pin to a known-good
-# version of GoogleTest.
-
-set -euox pipefail
-
-if [ -z ${ABSEIL_ROOT:-} ]; then
-  ABSEIL_ROOT="$(realpath $(dirname ${0})/..)"
-fi
-
-if [ -z ${ABSL_CMAKE_CXX_STANDARDS:-} ]; then
-  ABSL_CMAKE_CXX_STANDARDS="11 14"
-fi
-
-if [ -z ${ABSL_CMAKE_BUILD_TYPES:-} ]; then
-  ABSL_CMAKE_BUILD_TYPES="Debug Release"
-fi
-
-for std in ${ABSL_CMAKE_CXX_STANDARDS}; do
-  for compilation_mode in ${ABSL_CMAKE_BUILD_TYPES}; do
-    echo "--------------------------------------------------------------------"
-    echo "Testing with CMAKE_BUILD_TYPE=${compilation_mode} and -std=c++${std}"
-
-    time docker run \
-      --volume="${ABSEIL_ROOT}:/abseil-cpp:ro" \
-      --workdir=/abseil-cpp \
-      --tmpfs=/buildfs:exec \
-      --cap-add=SYS_PTRACE \
-      --rm \
-      -e CFLAGS="-Werror" \
-      -e CXXFLAGS="-Werror" \
-      gcr.io/google.com/absl-177019/linux_gcc-4.8:20190316 \
-      /bin/bash -c "
-        cd /buildfs && \
-        cmake /abseil-cpp \
-          -DABSL_USE_GOOGLETEST_HEAD=ON \
-          -DABSL_RUN_TESTS=ON \
-          -DCMAKE_BUILD_TYPE=${compilation_mode} \
-          -DCMAKE_CXX_STANDARD=${std} && \
-        make -j$(nproc) VERBOSE=1 && \
-        ctest -j$(nproc) --output-on-failure"
-  done
-done