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Apache Arrow ADBC bindings for Elixir

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adbc 3rd_party apache-arrow-adbc c driver_manager current_arch.h
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3rd_party/apache-arrow-adbc/c/driver_manager/current_arch.h 

// Licensed to the Apache Software Foundation (ASF) under one

// or more contributor license agreements.  See the NOTICE file

// distributed with this work for additional information

// regarding copyright ownership.  The ASF licenses this file

// to you 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

//

//   http://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.



#pragma once



#include <string>



namespace adbc {



const std::string& CurrentArch() {

#if defined(_WIN32)

  static const std::string platform = "windows";

#elif defined(__APPLE__)

  static const std::string platform = "osx";

#elif defined(__FreeBSD__)

  static const std::string platform = "freebsd";

#elif defined(__linux__)

  static const std::string platform = "linux";

#else

  static const std::string platform = "unknown";

#endif



#if defined(__x86_64__) || defined(__amd64__) || defined(_M_X64) || defined(_M_AMD64)

  static const std::string arch = "amd64";

#elif defined(__aarch64__) || defined(_M_ARM64) || defined(__ARM_ARCH_ISA_A64)

  static const std::string arch = "arm64";

#elif defined(__i386__) || defined(_M_IX86) || defined(_M_X86)

  static const std::string arch = "x86";

#elif defined(__arm__) || defined(_M_ARM)

  static const std::string arch = "arm";

#elif defined(__riscv) || defined(_M_RISCV)

  static const std::string arch = "riscv";

#elif defined(__powerpc__) || defined(__ppc__) || defined(_M_PPC)

  static const std::string arch = "powerpc";

#elif defined(__s390x__) || defined(_M_S390)

  static const std::string arch = "s390x";

#else

  static const std::string arch = "unknown";

#endif



// musl doesn't actually define any preprocessor macro for itself

// but apparently it doesn't define __USE_GNU inside of features.h

// while gcc DOES define that.

// see https://stackoverflow.com/questions/58177815/how-to-actually-detect-musl-libc

#if defined(_WIN32) || defined(__APPLE__) || defined(__FreeBSD__)

#else

#if !defined(_GNU_SOURCE)

#define _GNU_SOURCE

#include <features.h>  // NOLINT [build/include]

#ifndef __USE_GNU

#define __MUSL__

#endif

#undef _GNU_SOURCE /* don't contaminate other includes unnecessarily */

#else

#include <features.h>  // NOLINT [build/include]

#ifndef __USE_GNU

#define __MUSL__

#endif

#endif

#endif



#if defined(__MINGW32__) || defined(__MINGW64__)

  static const std::string target = "_mingw";

#elif defined(__MUSL__)

  static const std::string target = "_musl"

#else

  static const std::string target = "";

#endif



  static const std::string result = platform + "_" + arch + target;

  return result;

}



}  // namespace adbc