生成warp-ctc pytorch时收到make错误

Question

我试图在谷歌Colab上构建https://github.com/SeanNaren/warp-ctc.git，遵循this notebook。我在Colab上使用以下命令：

!git clone https://github.com/SeanNaren/warp-ctc.git;\
cd warp-ctc;\
mkdir build;\
cd build;\
cmake ..;\
make;

但我在构建它时收到一个错误：

[-11%] Building NVCC (Device) object CMakeFiles/warpctc.dir/src/warpctc_generated_ctc_entrypoint.cu.o
/content/drive/My Drive/simple_hwr/warp-ctc/src/ctc_entrypoint.cu(1): error: this declaration has no storage class or type specifier

/content/drive/My Drive/simple_hwr/warp-ctc/src/ctc_entrypoint.cu(1): error: expected a ";"

2 errors detected in the compilation of "/tmp/tmpxft_00000191_00000000-13_ctc_entrypoint.compute_70.cpp1.ii".
CMake Error at warpctc_generated_ctc_entrypoint.cu.o.cmake:279 (message):
  Error generating file /content/drive/My
  Drive/simple_hwr/warp-ctc/build/CMakeFiles/warpctc.dir/src/./warpctc_generated_ctc_entrypoint.cu.o


CMakeFiles/warpctc.dir/build.make:220: recipe for target 'CMakeFiles/warpctc.dir/src/warpctc_generated_ctc_entrypoint.cu.o' failed
make[2]: *** [CMakeFiles/warpctc.dir/src/warpctc_generated_ctc_entrypoint.cu.o] Error 1
CMakeFiles/Makefile2:146: recipe for target 'CMakeFiles/warpctc.dir/all' failed
make[1]: *** [CMakeFiles/warpctc.dir/all] Error 2
Makefile:129: recipe for target 'all' failed
make: *** [all] Error 2

如何解决这个问题？

Answer 1

此post记录了对此问题的明显修复，该问题也会影响原始warp-ctc存储库：

...ctc_entrypoint.cu文件必须是符号链接。因此，转到src dir并运行：

rm ctc_entrypoint.cu ln -s ctc_entrypoint.cpp ctc_entrypoint.cu

然后，重新运行make，这应该可以解决问题。