Created by: wangkuiyi

Is the follow errors due to that we didn't integrate the building and installation of WarpCTC into our cmake-based building system?

If so, are we supposed to integrate the building and installation procedures as described here into our Dockerfiles?

[ RUN      ] Layer.WarpCTCLayer
I1210 17:42:22.819157 12660 test_WarpCTCLayer.cpp:205] layerSize=10 batchSize=1 normByTimes = 0 useGpu=0
W1210 17:42:22.820042 12660 hl_dso_loader.cc:97] Failed to find dynamic library: /paddle/warp-ctc/build/libwarpctc.so (/paddle/warp-ctc/build/libwarpctc.so: cannot open shared object file: No such file or directory)
F1210 17:42:22.820751 12660 hl_dso_loader.cc:104] Check failed: nullptr != *dso_handle Failed to find dynamic library: libwarpctc.so (libwarpctc.so: cannot open shared object file: No such file or directory) 
Please specify its path correctly using one of the following ways: 
Method 1. set cuda and cudnn lib path at runtime. http://www.paddlepaddle.org/doc/ui/cmd_argument/argument_outline.html 
For instance, issue command: paddle train --use_gpu=1 --cuda_dir=/usr/local/cuda/lib64 --cudnn_dir=/usr/local/cudnn/lib ...
Method 2. set environment variable LD_LIBRARY_PATH on Linux or DYLD_LIBRARY_PATH on Mac OS. 
For instance, issue command: export LD_LIBRARY_PATH=... 
Note: After Mac OS 10.11, using the DYLD_LIBRARY_PATH is impossible unless System Integrity Protection (SIP) is disabled. However, method 1 always work well.
*** Check failure stack trace: ***
    @     0x7fc7aecb4daa  (unknown)
    @     0x7fc7aecb4ce4  (unknown)
    @     0x7fc7aecb46e6  (unknown)
    @     0x7fc7aecb7687  (unknown)
    @           0x79eea0  GetWarpCTCDsoHandle()
    @     0x7fc7afacca80  __GI___pthread_once
    @           0x79c3b1  std::call_once<>()
    @           0x79bb0a  hl_warpctc_init()
    @           0x524068  paddle::WarpCTCLayer::forward()
    @           0x51abdf  createWarpCTCLayer()
    @           0x51b5b1  Layer_WarpCTCLayer_Test::TestBody()
    @           0x7bbbb6  testing::internal::HandleSehExceptionsInMethodIfSupported<>()
    @           0x7b6bfc  testing::internal::HandleExceptionsInMethodIfSupported<>()
    @           0x7a3d45  testing::Test::Run()
    @           0x7a44c0  testing::TestInfo::Run()
    @           0x7a4a80  testing::TestCase::Run()
    @           0x7a96da  testing::internal::UnitTestImpl::RunAllTests()
    @           0x7bd100  testing::internal::HandleSehExceptionsInMethodIfSupported<>()
    @           0x7b7ba8  testing::internal::HandleExceptionsInMethodIfSupported<>()
    @           0x7a84d7  testing::UnitTest::Run()
    @           0x50df30  main
    @     0x7fc7adec0f45  (unknown)
    @           0x51868f  (unknown)
    @              (nil)  (unknown)