为 Android (Flutter) 构建 Rust 项目时出错：未找到用于 OpenSSL 编译的arm-linux-androideabi-ranlib

Question

我正在开发一个使用 Flutter 和 Rust 的项目，并且我正在尝试为 Android 构建它。arm-linux-androideabi-ranlib但是，我遇到了与未找到相关的错误。这是我收到的错误消息：

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--- stderr\n/home/user/Android/Sdk/ndk/25.2.9519653/toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-ar: warning: creating libcrypto.a\n/bin/sh: 1: arm-linux-androideabi-ranlib: not found\n/home/user/Android/Sdk/ndk/25.2.9519653/toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-ar: warning: creating libssl.a\n/bin/sh: 1: arm-linux-androideabi-ranlib: not found\n/bin/sh: 5: arm-linux-androideabi-ranlib: not found\nmake: *** [Makefile:313: install_dev] Error 127\nthread \'main\' panicked at \'\n\n\nError installing OpenSSL:\n    Command: cd "/home/user/IdeaProjects/my_project/rust/target/armv7-linux-androideabi/debug/build/openssl-sys-c3d36b893b4843b2/out/openssl-build/build/src" && "make" "install_dev"\n    Exit status: exit status: 2\n

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我检查了 NDK 目录，似乎存在所需的工具，但不完全是文件arm-linux-androideabi-ranlib。这是工具链目录的 ls 输出：

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prebuilt/linux-x86_64/bin via  v2.7.18 took 6s \n\xe2\x9d\xaf pwd\n/home/user/Android/Sdk/ndk/25.2.9519653/toolchains/llvm/prebuilt/linux-x86_64/bi\nprebuilt/linux-x86_64/bin via  v2.7.18 \n\xe2\x9d\xaf ls\naarch64-linux-android21-clang       i686-linux-android29-clang++\naarch64-linux-android21-clang++     i686-linux-android30-clang\naarch64-linux-android22-clang       i686-linux-android30-clang++\naarch64-linux-android22-clang++     i686-linux-android31-clang\naarch64-linux-android23-clang       i686-linux-android31-clang++\naarch64-linux-android23-clang++     i686-linux-android32-clang\naarch64-linux-android24-clang       i686-linux-android32-clang++\naarch64-linux-android24-clang++     i686-linux-android33-clang\naarch64-linux-android26-clang       i686-linux-android33-clang++\naarch64-linux-android26-clang++     ld\naarch64-linux-android27-clang       ld64.lld\naarch64-linux-android27-clang++     ld.lld\naarch64-linux-android28-clang       lld\naarch64-linux-android28-clang++     lldb\naarch64-linux-android29-clang       lldb-argdumper\naarch64-linux-android29-clang++     lldb.sh\naarch64-linux-android30-clang       lld-link\naarch64-linux-android30-clang++     llvm-addr2line\naarch64-linux-android31-clang       llvm-ar\naarch64-linux-android31-clang++     llvm-as\naarch64-linux-android32-clang       llvm-bolt\naarch64-linux-android32-clang++     llvm-cfi-verify\naarch64-linux-android33-clang       llvm-config\naarch64-linux-android33-clang++     llvm-cov\narmv7a-linux-androideabi19-clang    llvm-cxxfilt\narmv7a-linux-androideabi19-clang++  llvm-dis\narmv7a-linux-androideabi21-clang    llvm-dwarfdump\narmv7a-linux-androideabi21-clang++  llvm-dwp\narmv7a-linux-androideabi22-clang    llvm-lib\narmv7a-linux-androideabi22-clang++  llvm-link\narmv7a-linux-androideabi23-clang    llvm-lipo\narmv7a-linux-androideabi23-clang++  llvm-modextract\narmv7a-linux-androideabi24-clang    llvm-nm\narmv7a-linux-androideabi24-clang++  llvm-objcopy\narmv7a-linux-androideabi26-clang    llvm-objdump\narmv7a-linux-androideabi26-clang++  llvm-profdata\narmv7a-linux-androideabi27-clang    llvm-ranlib\narmv7a-linux-androideabi27-clang++  llvm-rc\narmv7a-linux-androideabi28-clang    llvm-readelf\narmv7a-linux-androideabi28-clang++  llvm-readobj\narmv7a-linux-androideabi29-clang    llvm-size\narmv7a-linux-androideabi29-clang++  llvm-strings\narmv7a-linux-androideabi30-clang    llvm-strip\narmv7a-linux-androideabi30-clang++  llvm-symbolizer\narmv7a-linux-androideabi31-clang    llvm-windres\narmv7a-linux-androideabi31-clang++  merge-fdata\narmv7a-linux-androideabi32-clang    remote_toolchain_inputs\narmv7a-linux-androideabi32-clang++  sancov\narmv7a-linux-androideabi33-clang    sanstats\narmv7a-linux-androideabi33-clang++  scan-build\nbisect_driver.py                    scan-view\nclang                               x86_64-linux-android21-clang\nclang++                             x86_64-linux-android21-clang++\nclang-14                            x86_64-linux-android22-clang\nclang-check                         x86_64-linux-android22-clang++\nclangd                              x86_64-linux-android23-clang\nclang-format                        x86_64-linux-android23-clang++\nclang-tidy                          x86_64-linux-android24-clang\ndsymutil                            x86_64-linux-android24-clang++\ngit-clang-format                    x86_64-linux-android26-clang\ni686-linux-android19-clang          x86_64-linux-android26-clang++\ni686-linux-android19-clang++        x86_64-linux-android27-clang\ni686-linux-android21-clang          x86_64-linux-android27-clang++\ni686-linux-android21-clang++        x86_64-linux-android28-clang\ni686-linux-android22-clang          x86_64-linux-android28-clang++\ni686-linux-android22-clang++        x86_64-linux-android29-clang\ni686-linux-android23-clang          x86_64-linux-android29-clang++\ni686-linux-android23-clang++        x86_64-linux-android30-clang\ni686-linux-android24-clang          x86_64-linux-android30-clang++\ni686-linux-android24-clang++        x86_64-linux-android31-clang\ni686-linux-android26-clang          x86_64-linux-android31-clang++\ni686-linux-android26-clang++        x86_64-linux-android32-clang\ni686-linux-android27-clang          x86_64-linux-android32-clang++\ni686-linux-android27-clang++        x86_64-linux-android33-clang\ni686-linux-android28-clang          x86_64-linux-android33-clang++\ni686-linux-android28-clang++        yasm\ni686-linux-android29-clang\n

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我正在使用 Flutter 3.7.6、Dart 2.19.3 和 Cargo-ndk。我的 gradle.properties 文件将 ANDROID_NDK 变量设置为正确的路径：

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ANDROID_NDK=/home/user/Android/Sdk/ndk/25.2.9519653/\n

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在我的 中build.gradle，我有以下构建 Rust 项目的任务：

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[\n        new Tuple2(\'Debug\', \'\'),\n        new Tuple2(\'Profile\', \'--release\'),\n        new Tuple2(\'Release\', \'--release\')\n].each {\n    def taskPostfix = it.first\n    def profileMode = it.second\n    tasks.whenTaskAdded { task ->\n        if (task.name == "javaPreCompile$taskPostfix") {\n            task.dependsOn "cargoBuild$taskPostfix"\n        }\n    }\n    tasks.register("cargoBuild$taskPostfix", Exec) {\n        commandLine \'sh\', \'-c\', """cd ../../rust/my_lib  && \\\n        ANDROID_NDK_HOME="$ANDROID_NDK" cargo ndk \\\n            -t armeabi-v7a -t arm64-v8a -t x86 -t x86_64 \\\n            -o ../android/app/src/main/jniLibs build $profileMode"""\n    }\n}\n

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我在我的项目中使用flutter_rust_bridge 版本 1.67.0。与此处build.gradle文件相关的文档。

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铁锈Cargo.toml：

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[\n        new Tuple2(\'Debug\', \'\'),\n        new Tuple2(\'Profile\', \'--release\'),\n        new Tuple2(\'Release\', \'--release\')\n].each {\n    def taskPostfix = it.first\n    def profileMode = it.second\n    tasks.whenTaskAdded { task ->\n        if (task.name == "javaPreCompile$taskPostfix") {\n            task.dependsOn "cargoBuild$taskPostfix"\n        }\n    }\n    tasks.register("cargoBuild$taskPostfix", Exec) {\n        commandLine \'sh\', \'-c\', """cd ../../rust/my_lib  && \\\n        ANDROID_NDK_HOME="$ANDROID_NDK" cargo ndk \\\n            -t armeabi-v7a -t arm64-v8a -t x86 -t x86_64 \\\n            -o ../android/app/src/main/jniLibs build $profileMode"""\n    }\n}\n

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有谁知道为什么构建失败并出现“arm-linux-androideabi-ranlib not found”错误以及如何修复它？任何帮助，将不胜感激。谢谢！

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Answer 1

CC_aarch64-linux-android您可以通过、等环境变量配置 OpenSSL Android 构建脚本使用的命令路径RANLIB_aarch64-linux-android。这是我用来配置此类变量的 PowerShell 脚本：

$ANDROID_HOME = "/path/to/Android/sdk";
$ANDROID_SUBDIRS = "emulator", "tools", "tools/bin", "platform-tools";
ForEach ($subdir in $ANDROID_SUBDIRS) {
    ${env:PATH} = "${env:PATH}:${ANDROID_HOME}/$subdir";
}
${env:ANDROID_HOME} = $ANDROID_HOME;
${env:ANDROID_SDK_ROOT} = $ANDROID_HOME;
${env:ANDROID_NDK_ROOT} = "$ANDROID_HOME/ndk/25.2.9519653";

function configureAndroidToolchain {
    # "windows-x86_64" on Windows
    # "darwin-x86_64" on macOS (even with Apple Silicon)
    # "linux-x86_64" on Linux
    $hostTag = "darwin-x86_64";

    # Use the minSdkVersion you use
    $sdkVersion = "29";

    $archs = @{}
    $archs["aarch64-linux-android"] = $null;
    $archs["armv7-linux-androideabi"] = "armv7a-linux-androideabi";
    $archs["x86_64-linux-android"] = $null;
    $archs["i686-linux-android"] = $null;

    $prebuiltDir = "${env:ANDROID_NDK_ROOT}/toolchains/llvm/prebuilt/$hostTag/bin";

    foreach ($rustArch in $archs.Keys) {
        $androidArch = $archs[$rustArch];
        if ($androidArch -eq $null) {
            $androidArch = $rustArch;
        }

        Set-Item "env:CC_$rustArch" -Value "$prebuiltDir/$androidArch$sdkVersion-clang";
        Set-Item "env:CXX_$rustArch" -Value "$prebuiltDir/$androidArch$sdkVersion-clang++";
        Set-Item "env:AR_$rustArch" -Value "$prebuiltDir/llvm-ar";
        Set-Item "env:RANLIB_$rustArch" -Value "$prebuiltDir/llvm-ranlib";
        Set-Item "env:CFLAGS_$rustArch" -Value "-D__ANDROID_MIN_SDK_VERSION__=$sdkVersion";
        Set-Item "env:CXXFLAGS_$rustArch" -Value "-D__ANDROID_MIN_SDK_VERSION__=$sdkVersion";
    }
}

configureAndroidToolchain;

应用这些变量后，OpenSSL 构建将正常完成。