[Windows] compile error C2062

[yunge]

Win10 64bit, vs2013 update5, with Visual C++ Compiler Nov 2013 CTP, just followed Installation Guide.

error C2062: type 'const char' unexpected ...\include\mxnet\c_api.h 58
error C2062: type 'int' unexpected ...\include\mxnet\c_api.h 68
.....

cmake output:
-- The C compiler identification is MSVC 18.0.21114.0
-- The CXX compiler identification is MSVC 18.0.21114.0
-- Check for working C compiler using: Visual Studio 12 2013 Win64
-- Check for working C compiler using: Visual Studio 12 2013 Win64 -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler using: Visual Studio 12 2013 Win64
-- Check for working CXX compiler using: Visual Studio 12 2013 Win64 -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found Atlas: D:/weiyun/software/dev/OpenBLAS-v0.2.14-Win64-int32/include
-- Found Atlas (include: D:/weiyun/software/dev/OpenBLAS-v0.2.14-Win64-int32/include, library: D:/weiyun/software/dev/OpenBLAS-v0.2.14-Win64-int32/lib/libopenblas.dll)
-- CUDA detected: 7.5
-- Added CUDA NVCC flags for: sm_52
-- OpenCV found (D:/software/opencv/build)
-- Try OpenMP C flag = [/openmp]
-- Performing Test OpenMP_FLAG_DETECTED
-- Performing Test OpenMP_FLAG_DETECTED - Success
-- Try OpenMP CXX flag = [/openmp]
-- Performing Test OpenMP_FLAG_DETECTED
-- Performing Test OpenMP_FLAG_DETECTED - Success
-- Found OpenMP: /openmp
-- Found PythonInterp: C:/Python35/python.exe (found suitable version "3.5", minimum required is "2")
-- Found PythonInterp: C:/Python35/python.exe (found suitable version "3.5", minimum required is "3")
-- Found PythonInterp: C:/Python35/python.exe (found suitable version "3.5", minimum required is "2")
-- Found PythonInterp: C:/Python35/python.exe (found suitable version "3.5", minimum required is "3")
-- Configuring done
-- Generating done
-- Build files have been written to: c:/mxnetbuild

Please help, thanks.

[yang1fan2]

I met the same problem.
(In the file include/mxnet/c_api.h from line 16 to line 18, remove "__cdecl".)
i.e. change from
"
#define MXNET_DLL MXNET_EXTERN_C __cdecl __declspec(dllexport)
#else
#define MXNET_DLL MXNET_EXTERN_C __cdecl __declspec(dllimport)
"
to
"
#define MXNET_DLL MXNET_EXTERN_C __declspec(dllexport)
#else
#define MXNET_DLL MXNET_EXTERN_C __declspec(dllimport)
"

Hope this will help.

[tqchen]

hmm @hjk41 Can you look into this? Maybe the __cdel is not needed here?

[hjk41]

Let me check it out. I am assuming you are using VS 2013?

On Sun, Oct 25, 2015 at 1:13 PM, Tianqi Chen notifications@github.com
wrote:

hmm @hjk41 https://github.com/hjk41 Can you look into this? Maybe the
__cdel is not needed here?

—
Reply to this email directly or view it on GitHub
#386 (comment).

HONG Chuntao
System Research Group
Microsoft Research Asia

[yunge]

Delete "__cdecl" works, thanks.

I use vs2013 update5 under win10 64bit.

Unfortunately, I got another compile problem, I'll report it later.

[hjk41]

fixed in #396 #396

On Mon, Oct 26, 2015 at 10:45 AM, Fu YunGe notifications@github.com wrote:

Delete "__cdecl" works, thanks.

I use vs2013 update5 under win10 64bit.

Unfortunately, I got another compile problem, I'll report it later.

—
Reply to this email directly or view it on GitHub
#386 (comment).

HONG Chuntao
System Research Group
Microsoft Research Asia

[hjk41]

YunGe,

Could you pull the latest version and see if it fixes your problem?

Thanks,
chuntao

On Mon, Oct 26, 2015 at 11:28 AM, Chuntao HONG chuntao.hong@gmail.com
wrote:

fixed in #396 #396

On Mon, Oct 26, 2015 at 10:45 AM, Fu YunGe notifications@github.com
wrote:

Delete "__cdecl" works, thanks.

I use vs2013 update5 under win10 64bit.

Unfortunately, I got another compile problem, I'll report it later.

—
Reply to this email directly or view it on GitHub
#386 (comment).

HONG Chuntao
System Research Group
Microsoft Research Asia

HONG Chuntao
System Research Group
Microsoft Research Asia

[sxjscience]

@hjk41 I've faced similar problem as @yunge and the new version fixes the issue. Now I'm able to compile and run MXNet on Windows (Only CPU).

I use Intel Parallel Studio Xe 2016 + VS2013 + OpenCV3.0 + Canopy. The cmake command should be like cmake -DOpenCV_DIR=YOUR_OPENCV_DIR -DBLAS=MKL .. and the resulting VS2013 project should be configured to 64 bit. Also, to make the python package find the dll, the dll path generation code should be changed accordingly. Moreover, since EPD has a pre-install openmp library that conflicts with the new MKL, I use the solution described here.

Hope my experience can help others who are installing MXNet on Windows.

[hjk41]

Thanks @sxjscience, for the great summary!

On Mon, Oct 26, 2015 at 4:18 PM, sxjscience notifications@github.com
wrote:

@hjk41 https://github.com/hjk41 I've faced similar problem as @yunge
https://github.com/yunge and the new version fixes the issue. Now I'm
able to compile and run MXNet on Windows (Only CPU).

I use Intel Parallel Studio Xe 2016 + VS2013 + OpenCV3.0 + Canopy. The
cmake command should be like cmake -DOpenCV_DIR=YOUR_OPENCV_DIR
-DBLAS=MKL .. and the resulting VS2013 project should be configured to 64
bit. Also, to make the python package find the dll, the dll path
generation code
https://github.com/dmlc/mxnet/blob/master/python/mxnet/libinfo.py#L18-L29
should be changed accordingly. Moreover, since EPD has a pre-install openmp
library that conflicts with the new MKL, I use the solution described here
https://github.com/JoFrhwld/FAVE/wiki/Troubleshooting-FAVE-extract.

Hope my experience can help others who are installing MXNet on Windows.

—
Reply to this email directly or view it on GitHub
#386 (comment).

HONG Chuntao
System Research Group
Microsoft Research Asia

[yunge]

Hi, @hjk41 , everything is ok now, with openblas/cuda7.5, thanks!