Gcc make[1]：***[CMakeFiles/test_cpu.dir/all]运行cmake时出现错误2

我想从安装一个快速并行CTC库。但是我在链接（编译部分中描述的以下步骤中进行堆栈

如果您有非标准CUDA安装导出CUDA\u BIN\u PATH=/PATH\u to\u CUDA，以便CMake检测CUDA并确保检测到火炬，请确保th位于$PATH

1） 我怎么才能找到通往库达的路呢？我怕在这条路上出错

  CUDA_BIN_PATH=/path_to_cuda 

及

2） 如何确保th位于$PATH中

因为没有这些，代码就不能工作

以下是步骤：

git clone https://github.com/baidu-research/warp-ctc.git
cd warp-ctc
mkdir build 
cd build 
cmake ../



-- The C compiler identification is GNU 4.8.5
-- The CXX compiler identification is GNU 4.8.5
-- Check for working C compiler: /root/anaconda3/bin/cc
-- Check for working C compiler: /root/anaconda3/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: /root/anaconda3/bin/c++
-- Check for working CXX compiler: /root/anaconda3/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - not found
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE  
**CMake Warning at /usr/share/cmake-3.5/Modules/FindCUDA.cmake:771 (message):
  Expecting to find librt for libcudart_static, but didn't find it.
Call Stack (most recent call first):
  CMakeLists.txt:20 (FIND_PACKAGE)**


-- Found CUDA: /usr/local/cuda (found suitable version "8.0", minimum required is "6.5") 
-- cuda found TRUE
-- Found Torch7 in /home/ahmed/torch/install
-- Torch found /home/ahmed/torch/install/share/cmake/torch
-- Building shared library with GPU support
-- Building Torch Bindings with GPU support
-- Configuring done
-- Generating done
-- Build files have been written to: /home/ahmed/warp-ctc/build

跑步后

make

我得到了以下错误：

make
[ 10%] Building NVCC (Device) object CMakeFiles/warpctc.dir/src/warpctc_generated_reduce.cu.o
[ 20%] Building NVCC (Device) object CMakeFiles/warpctc.dir/src/warpctc_generated_ctc_entrypoint.cu.o
Scanning dependencies of target warpctc
[ 30%] Linking CXX shared library libwarpctc.so
[ 30%] Built target warpctc
Scanning dependencies of target test_cpu
[ 40%] Building CXX object CMakeFiles/test_cpu.dir/tests/test_cpu.cpp.o
[ 50%] Linking CXX executable test_cpu
/home/ahmed/torch/install/lib/libTHC.so: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()@GLIBCXX_3.4.21'
/home/ahmed/torch/install/lib/libTHC.so: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_append(char const*, unsigned long)@GLIBCXX_3.4.21'
/home/ahmed/torch/install/lib/libTH.so.0: undefined reference to `GOMP_parallel@GOMP_4.0'
/home/ahmed/torch/install/lib/libTHC.so: undefined reference to `std::random_device::_M_init(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)@GLIBCXX_3.4.21'
/home/ahmed/torch/install/lib/libTHC.so: undefined reference to `std::runtime_error::runtime_error(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)@GLIBCXX_3.4.21'
/home/ahmed/torch/install/lib/libTHC.so: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_replace(unsigned long, unsigned long, char const*, unsigned long)@GLIBCXX_3.4.21'
/home/ahmed/torch/install/lib/libTHC.so: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_create(unsigned long&, unsigned long)@GLIBCXX_3.4.21'
collect2: error: ld returned 1 exit status
CMakeFiles/test_cpu.dir/build.make:99: recipe for target 'test_cpu' failed
make[2]: *** [test_cpu] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/test_cpu.dir/all' failed
make[1]: *** [CMakeFiles/test_cpu.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2

make
[10%]生成NVCC（设备）对象CMakeFiles/warpct.dir/src/warpct\u生成的\u reduce.cu.o
[20%]构建NVCC（设备）对象cmakfiles/warpctcc.dir/src/warpcc\u生成的\u ctc\u entrypoint.cu.o
目标对象的扫描依赖关系
[30%]链接CXX共享库libwarptc.so
[30%]已建立目标系统
扫描目标测试cpu的依赖项
[40%]构建CXX对象CMakeFiles/test\u cpu.dir/tests/test\u cpu.cpp.o
[50%]链接CXX可执行测试\u cpu
/home/ahmed/torch/install/lib/libTHC.so:std:uuuCXX11:：basic_string:：~basic_string（）@GLIBCXX_3.4.21的未定义引用
/home/ahmed/torch/install/lib/libTHC.so:std:uuucx11:：basic_string:：_M_append（char const*，unsigned long）@GLIBCXX_3.4.21的未定义引用
/home/ahmed/torch/install/lib/libTH.so.0:对“GOMP”的未定义引用_parallel@GOMP_4.0'
/home/ahmed/torch/install/lib/libTHC.so:未定义对“std:：random_device:：_M_init（std:u cx11:：basic_string const&）@GLIBCXX_3.4.21”的引用
/home/ahmed/torch/install/lib/libTHC.so:未定义对“std:：runtime\u error:：runtime\u error（std:：\uu cx11:：basic\u string const&）@GLIBCXX\u 3.4.21”的引用
/home/ahmed/torch/install/lib/libTHC.so:std:uuu cxx11:：basic_string:：_M_replace（无符号长、无符号长、字符常量*、无符号长）@GLIBCXX_3.4.21'
/home/ahmed/torch/install/lib/libTHC.so:std:uuucx11:：basic_string:：_M_create（unsigned long&，unsigned long）@GLIBCXX_3.4.21的未定义引用
collect2:错误：ld返回了1个退出状态
CMakeFiles/test\u cpu.dir/build.make:99:目标“test\u cpu”的配方失败
make[2]：***[test_cpu]错误1
CMakeFiles/Makefile2:67:目标“CMakeFiles/test_cpu.dir/all”的配方失败
生成[1]：***[CMakeFiles/test\u cpu.dir/all]错误2
Makefile:127:目标“全部”的配方失败
make:**[全部]错误2

这似乎是一个与Torch和Pytorch完全无关的CMake问题

从
Christian Pfeiffer说：“您观察到的错误意味着您试图链接使用GCC 5.1.0或更新版本构建的代码（这就是GLIBCXX_3.4.21对应的代码）使用GCC4.8.5编译器，因此更老的libstdc++也随之提供。更具体地说，您得到的cutorch二进制文件并没有使用与您现在尝试使用的相同的GCC构建。

---

LISSTDC++使用版本符号，使用“GLYBCXX3.3.4.21”来引用符号引入的点。在特定情况下，GCC 5.1.0中的C++ ABI更改会中断链接过程。“

我没有看到错误，我看到了一个错误。warning@talonmies，但它应该找到自由，不是吗？“希望找到libcudart_static的librt，但没有找到它。”@Talonmes，请查看我的更新我不相信你显示的错误与该警告有关，而且肯定与CUDAIt无关。在我看来，这就像是一个ABI不兼容错误。。。库

/home/ahmed/torch/install/lib/libTHC.so

是否使用相同的编译器编译？我猜情况并非如此，这是导致错误的原因。