Building mlpack-2.0.3 on Windows 10 with MSVC 19

[asadoll]

I tried to follow these steps, everything went fine except generating MS Visual Studio solution failed with an error which shows the intermediate/temp .vcxproj is using a GNU C++ compiler template instead of the MSVC's. This is my first try with cmake, so do you think I should check sth inside mlpack cmake files or it may be some bug in cmake?

Here's the error dump:

Performing C++ SOURCE FILE Test COMPILER_HAS_DEPRECATED_ATTR failed with the following output:
Change Dir: C:/home/src/mlpack-2.0.3/build/CMakeFiles/CMakeTmp

Run Build Command:"C:/Program Files (x86)/MSBuild/14.0/bin/MSBuild.exe" "cmTC_2cc0c.vcxproj" "/p:Configuration=Debug" "/p:VisualStudioVersion=14.0"
Microsoft (R) Build Engine version 14.0.25420.1

Copyright (C) Microsoft Corporation. All rights reserved.

Build started 9/28/2016 6:46:04 PM.

Project "C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\cmTC_2cc0c.vcxproj" on node 1 (default targets).

PrepareForBuild:

Creating directory "cmTC_2cc0c.dir\Debug".

Creating directory "C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\Debug".

Creating directory "cmTC_2cc0c.dir\Debug\cmTC_2cc0c.tlog".

InitializeBuildStatus:

Creating "cmTC_2cc0c.dir\Debug\cmTC_2cc0c.tlog\unsuccessfulbuild" because "AlwaysCreate" was specified.

ClCompile:

C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\x86_amd64\CL.exe /c /Zi /W3 /WX- /Od /Ob0 /D WIN32 /D _WINDOWS /D COMPILER_HAS_DEPRECATED_ATTR /D _DEBUG /D "CMAKE_INTDIR="Debug"" /D _MBCS /Gm- /EHsc /RTC1 /MDd /GS /fp:precise /Zc:wchar_t /Zc:forScope /Zc:inline /GR /openmp /Fo"cmTC_2cc0c.dir\Debug" /Fd"cmTC_2cc0c.dir\Debug\vc140.pdb" /Gd /TP /errorReport:queue -O3 "C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\src.cxx"

Microsoft (R) C/C++ Optimizing Compiler Version 19.00.24215.1 for x64

Copyright (C) Microsoft Corporation. All rights reserved.

cl /c /Zi /W3 /WX- /Od /Ob0 /D WIN32 /D _WINDOWS /D COMPILER_HAS_DEPRECATED_ATTR /D _DEBUG /D "CMAKE_INTDIR="Debug"" /D _MBCS /Gm- /EHsc /RTC1 /MDd /GS /fp:precise /Zc:wchar_t /Zc:forScope /Zc:inline /GR /openmp /Fo"cmTC_2cc0c.dir\Debug" /Fd"cmTC_2cc0c.dir\Debug\vc140.pdb" /Gd /TP /errorReport:queue -O3 "C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\src.cxx"

cl : Command line warning D9002: ignoring unknown option '-O3' [C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\cmTC_2cc0c.vcxproj]

src.cxx

C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\src.cxx(1): error C2065: 'deprecated': undeclared identifier [C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\cmTC_2cc0c.vcxproj]

C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\src.cxx(1): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int [C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\cmTC_2cc0c.vcxproj]

C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\src.cxx(1): error C2448: 'attribute': function-style initializer appears to be a function definition [C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\cmTC_2cc0c.vcxproj]

Done Building Project "C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\cmTC_2cc0c.vcxproj" (default targets) -- FAILED.

Build FAILED.

"C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\cmTC_2cc0c.vcxproj" (default target) (1) ->

(ClCompile target) ->

cl : Command line warning D9002: ignoring unknown option '-O3' [C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\cmTC_2cc0c.vcxproj]

"C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\cmTC_2cc0c.vcxproj" (default target) (1) ->

(ClCompile target) ->

C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\src.cxx(1): error C2065: 'deprecated': undeclared identifier [C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\cmTC_2cc0c.vcxproj]

C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\src.cxx(1): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int [C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\cmTC_2cc0c.vcxproj]

C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\src.cxx(1): error C2448: 'attribute': function-style initializer appears to be a function definition [C:\home\src\mlpack-2.0.3\build\CMakeFiles\CMakeTmp\cmTC_2cc0c.vcxproj]

1 Warning(s)

3 Error(s)

Time Elapsed 00:00:00.44

Source file was:
attribute((deprecated)) int somefunc() { return 0; }
int main() { return somefunc();}

[rcurtin]

You are right, __attribute__((__deprecated)) does not exist for MSVC. Can you post the CMake configuration output? That might provide some information on why this happened.

Also, it looks like you are trying to compile a program that links against mlpack. Did mlpack itself compile successfully? I'm not sure I completely understand what you've done here.

[asadoll]

It's the log for the error which occurred during compiling the temporary compiler feature test projects and it's the mlpack itself.
I cloned the master branch instead of 2.0.3 and it worked fine. I noticed the same error happened on COMPILER_HAS_DEPRECATED_ATTR but cmake retried with the next template and passed.
I will check the CMakeLists from both branches to see what's the difference.

[rcurtin]

Is it possible this could be a CMake bug? I am not sure if much has changed in the configuration between 2.0.3 and master that would affect your situation.

[asadoll]

I couldn't reproduce the error for the master version.

[rcurtin]

In this case, should we close this? It sounds like if there is an issue, it will be fixed upon the next release.