无法在 centos 7 中构建 vowpal wabbit

Question

我正在尝试在 centos 7 的虚拟环境中安装 vowpal wabbit。我已经安装了所需的 boost(https://medium.com/@royendgel/boost-boost-python-dlib-python3-on-centos-or-amazon-linux-4039f70a3614) 等依赖项。

Python：3.6 Cmake：3.6.2（按照此文档安装：http://jotmynotes.blogspot.com/2016/10/updating-cmake-from-2811-to-362-or.html）

这是运行“make install”时的错误。我遵循了来自https://github.com/VowpalWabbit/vowpal_wabbit/wiki/Installing 的 Linux 指令。

 Scanning dependencies of target spanning_tree
[  1%] Building CXX object cluster/CMakeFiles/spanning_tree.dir/spanning_tree_main.cc.o
[  1%] Building CXX object cluster/CMakeFiles/spanning_tree.dir/__/vowpalwabbit/spanning_tree.cc.o
[  2%] Building CXX object cluster/CMakeFiles/spanning_tree.dir/__/vowpalwabbit/vw_exception.cc.o
[  3%] Linking CXX executable spanning_tree
[  3%] Built target spanning_tree
[  6%] Built target allreduce
[  6%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/audit_regressor.cc.o
In file included from /home/joel/vowpal_wabbit/vowpalwabbit/reductions.h:9:0,
                 from /home/joel/vowpal_wabbit/vowpalwabbit/audit_regressor.cc:5:
/home/joel/vowpal_wabbit/vowpalwabbit/global_data.h:479:30: warning: missing initializer for member ‘std::array<std::vector<std::shared_ptr<std::unordered_map<std::basic_string<char>, std::unique_ptr<features> > > >, 256ul>::_M_elems’ [-Wmissing-field-initializers]
       namespace_dictionaries{};  // each namespace has a list of dictionaries attached to it
                              ^
In file included from /home/joel/vowpal_wabbit/vowpalwabbit/global_data.h:49:0,
                 from /home/joel/vowpal_wabbit/vowpalwabbit/reductions.h:9,
                 from /home/joel/vowpal_wabbit/vowpalwabbit/audit_regressor.cc:5:
/home/joel/vowpal_wabbit/vowpalwabbit/options.h: In instantiation of ‘VW::config::typed_option<T>::typed_option(const string&, T&) [with T = std::basic_string<char>; std::string = std::basic_string<char>]’:
/home/joel/vowpal_wabbit/vowpalwabbit/options.h:97:40:   required from ‘VW::config::typed_option<T> VW::config::make_option(std::string, T&) [with T = std::basic_string<char>; std::string = std::basic_string<char>]’
/home/joel/vowpal_wabbit/vowpalwabbit/audit_regressor.cc:249:58:   required from here
/home/joel/vowpal_wabbit/vowpalwabbit/options.h:37:117: error: invalid initialization of non-const reference of type ‘std::basic_string<char>&’ from an rvalue of type ‘<brace-enclosed initializer list>’
   typed_option(const std::string& name, T& location) : base_option(name, typeid(T).hash_code()), m_location{location} {}
                                                                                                                     ^
make[2]: *** [vowpalwabbit/CMakeFiles/vw.dir/audit_regressor.cc.o] Error 1
make[1]: *** [vowpalwabbit/CMakeFiles/vw.dir/all] Error 2
make: *** [all] Error 2

Answer 1

清除linux centos 7

• 百胜更新
• 安装 gcc*
• 安装cmake-3.10.2.tar.gz
• 安装 boost_1_65_1.tar.gz
• 安装java-1.8

LD_LIBRARY_PATH=/opt/boost/lib 导出 LD_LIBRARY_PATH

BOOST_ROOT=/opt/boost（选择安装位置） 导出 BOOST_ROOT ... 光盘构建； cmake ..

完成。

Answer 2

尝试安装 vowpal wabbit

g++ 编译器必须是 c++11 版本。 Boost 必须用 c++11 编译...见how to install gcc 4.9.2 on RHEL 7.4

CentOS 7：构建示例，在 /home/[name]/tmp/

======= Boost ========
cd boost_1_68_0/
echo "using gcc : : /usr/bin/g++73 ; " >> tools/build/src/user-config.jam
echo "using python : 3.6 : /usr/bin/python3.6 : /usr/include/python3.6m ; " >> tools/build/src/user-config.jam

./bootstrap.sh
./b2
# ./b2 install

======== dlib ============
cd dlib-19.19.0/ && python3 setup.py build
# python3 setup.py install

======== VowpalWabbit ========
git clone https://github.com/VowpalWabbit/vowpal_wabbit.git
cd vowpal_wabbit/
git submodule update --init --recursive
mkdir build && cd build/
CC=gcc73 CXX=g++73 cmake3 ..
make      // no errors

P.S.：参考。 README.md → 新的“建筑信息”在这里https://github.com/VowpalWabbit/vowpal_wabbit/wiki/Building → 警告：在 vowpal_wabbit/ 中执行“make”只能为 Python 2 配置。

---

为 VowpalWabbit 构建 python3 绑定：由于默认 Makefile 和 cmake 选项仅适用于 python2，因此解决方案如下：

cd vowpal_wabbit/
export CC=gcc73 CXX=g++73 && python3 setup.py build
.
[100%] Built target pylibvw
.
# export CC=gcc73 CXX=g++73 && python3 setup.py install