clang++: error: linker command failed with exit code 1

[100%] Linking CXX shared library libexamplemgr.so
/home/user/work/external/android_tools/ndk/android-ndk-r21e/toolchains/llvm/prebuilt/linux-x86_64/lib/gcc/aarch64-linux-android/4.9.x/../../../../aarch64-linux-android/bin/ld: cannot find -lbase
/home/user/work/external/android_tools/ndk/android-ndk-r21e/toolchains/llvm/prebuilt/linux-x86_64/lib/gcc/aarch64-linux-android/4.9.x/../../../../aarch64-linux-android/bin/ld: cannot find -lcommon
/home/user/work/external/android_tools/ndk/android-ndk-r21e/toolchains/llvm/prebuilt/linux-x86_64/lib/gcc/aarch64-linux-android/4.9.x/../../../../aarch64-linux-android/bin/ld: cannot find -lconnection
/home/user/work/external/android_tools/ndk/android-ndk-r21e/toolchains/llvm/prebuilt/linux-x86_64/lib/gcc/aarch64-linux-android/4.9.x/../../../../aarch64-linux-android/bin/ld: cannot find -lbreakpad
clang++: error: linker command failed with exit code 1 (use -v to see invocation)

在我自己的项目中使用cmake编译报这个error: linker command failed with exit code 1，前面的这四个库，第四个breakpad是第三方，剩下三个我并没有base、common、connection这三个库，他为什么要去NDK里找这三个库？

img

感觉这个提示挺清楚的，就是有些静态库找不到，你这个环境下有没有 ？

  • 这篇博客: c++编译器配置错误问题clang: error: linker command failed with exit code 1 (use -v to see invocation)中的 解决方案： 部分也许能够解决你的问题, 你可以仔细阅读以下内容或跳转源博客中阅读:

  • １．cmake在第一次编译的时候开始会输出使用的c和cxx编译器，如下：

     cmake ..
-- The C compiler identification is GNU 7.5.0
-- The CXX compiler identification is Clang 6.0.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
...

    ２．更新c++默认编译器

    由于之前已经删除了g++-7对应的编译器链接，所以执行　sudo update-alternatives --config g++　显示

    sudo update-alternatives --config c++
There is only one alternative in link group c++ (providing /usr/bin/c++): /usr/bin/clang++-libc++
Nothing to configure.

    添加g++编译器到group c++

    sudo update-alternatives --install /usr/bin/c++ c++ /usr/bin/g++ 100

    再次执行即可看到：默认编译器已经切换为g++

    sudo update-alternatives --config c++
There are 2 choices for the alternative c++ (providing /usr/bin/c++).

  Selection    Path                     Priority   Status
------------------------------------------------------------
* 0            /usr/bin/g++              100       auto mode
  1            /usr/bin/clang++-libc++   5         manual mode
  2            /usr/bin/g++              100       manual mode

Press <enter> to keep the current choice[*], or type selection number:

    查看编译器版本g++-7

    ll /usr/bin/g++
lrwxrwxrwx 1 root root 5 5月  21  2019 /usr/bin/g++ -> g++-7*

    后续升级编译器也是类似操作．

    ３．验证测试

    删除项目的build内容，重新编译查看cmake默认编译器均为GNU 7.5.0, 正常！

    cmake ..
-- The C compiler identification is GNU 7.5.0
-- The CXX compiler identification is GNU 7.5.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works