我正在尝试在unix中编译hadoop本机库，我使用的是：
hadoop:branch-3.2（这里是hadoop存储库）
macos:catalina版本10.15.5
协议：libprotoc 2.5.0
openssl 1.0.2t 2019年9月10日
gcc:apple-clangversion 11.0.3（clang-1103.0.32.62）目标：x86\u 64-apple-darwin19.5.0线程模型：posix installeddir:/library/developer/commandlinetools/usr/bin
java版本“1.8.0\u 251”（内部版本1.8.0\u 251-b08）
我遵循了这里的所有步骤：在修复了openssl和protobuf的几个问题之后，在mac上编译hadoop现在看来，apache hadoop mapreduce nativetask的编译由于与c11的依赖性而失败。
我是否需要以某种方式指定将cxxflags参数设置为-std=c11？我该怎么做？或者我的gcc中缺少了一些配置？
我试着将一个别名设置为gcc，然后立即用下面解释的标志调用它：如何在默认情况下使clang支持c++11，但仍然不起作用。
到目前为止，这些是我遇到的许多类似错误之一：

[WARNING] /usr/local/include/snappy-stubs-public.h:61:16: warning: alias declarations are a C++11 extension [-Wc++11-extensions]

[WARNING] using uint64 = std::uint64_t;

[WARNING] In file included from /Users/josh/Dev/hadoop/repo/hadoop/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/test/TestCompressions.cc:29:

[WARNING] /usr/local/include/snappy.h:197:10: error: unknown type name 'constexpr'

[WARNING]   static constexpr int kBlockLog = 16;

[INFO] Apache Hadoop MapReduce NativeTask ................. FAILURE [  1.995 s]

在更仔细地阅读了输出之后，我认为这是最终抛出错误的命令：

[WARNING] /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/nttest.dir/build.make CMakeFiles/nttest.dir/build
[WARNING] [ 75%] Building CXX object CMakeFiles/nttest.dir/main/native/test/TestCompressions.cc.o
[WARNING] /Library/Developer/CommandLineTools/usr/bin/c++   -I/Users/josh/Dev/hadoop/repo/hadoop/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/target/native/javah -I/Users/josh/Dev/hadoop/repo/hadoop/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/src -I/Users/josh/Dev/hadoop/repo/hadoop/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/src/util -I/Users/josh/Dev/hadoop/repo/hadoop/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/src/lib -I/Users/josh/Dev/hadoop/repo/hadoop/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/test -I/Users/josh/Dev/hadoop/repo/hadoop/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src -I/Users/josh/Dev/hadoop/repo/hadoop/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/target/native -I/Library/Java/JavaVirtualMachines/jdk1.8.0_251.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/jdk1.8.0_251.jdk/Contents/Home/include/darwin -I/usr/local/include -isystem /Users/josh/Dev/hadoop/repo/hadoop/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/../../../../hadoop-common-project/hadoop-common/src/main/native/gtest/include  -g -O2 -Wall -pthread -D_FILE_OFFSET_BITS=64 -DNDEBUG -DSIMPLE_MEMCPY -fno-strict-aliasing -fsigned-char -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk   -o CMakeFiles/nttest.dir/main/native/test/TestCompressions.cc.o -c /Users/josh/Dev/hadoop/repo/hadoop/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/test/TestCompressions.cc
[WARNING] In file included from /Users/josh/Dev/hadoop/repo/hadoop/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/test/TestCompressions.cc:29:
[WARNING] In file included from /usr/local/include/snappy.h:45:
[WARNING] /usr/local/include/snappy-stubs-public.h:54:14: warning: alias declarations are a C++11 extension [-Wc++11-extensions]
[WARNING] using int8 = std::int8_t;

谢谢您！