Problems when building spaint project

[uni4th]

1. A file called "DeviceType.h" is missing. I think it should have appeared in /InfiniTAM/ORUtils/, however I cannot find it. How can I get access to this file?

2. My computer doesn't have NVIDIA, so I want to disable CUDA. I unflagged "WITH_CUDA" when configuring with CMake, however when compiling with Xcode, it still raises errors like "Use of undeclared identifier 'cudaSetDevice'". What can I do?

Thank you very much

[sgolodetz]

1. Have you updated InfiniTAM? The latest version (on the infinitam_v3.5 branch) has the file there:

https://github.com/victorprad/InfiniTAM/tree/infinitam_v3.5/ORUtils

2. I'll investigate - there may be a missing preprocessor guard somewhere. Did Xcode tell you where the error occurred?

[sgolodetz]

You have to turn off WITH_CUDA in InfiniTAM also and rebuild that first btw, if you haven't.

[sgolodetz]

Ok, so re. (2), BackgroundRelocaliser shouldn't have been being built in non-CUDA mode, since it's there to let you run relocalisation on a secondary GPU. I've modified the CMake script accordingly - hopefully should work now.

[sgolodetz]

@uni4th If you get a chance, please could you test whether that fixes the problem for you? If so, I'll close off the issue.

[uni4th]

@sgolodetz Thank you very much for your reply. The problem with cuda is now solved, however I'm coming up with a new problem. When building spaintgui with Xcode, there is a warning "libstdc++ is deprecated; move to libc++ [-Wdeprecated]", and errors "Undefined symbols for architecture x86_64". (I have already switch C++ Standard Library into libstdc++) What can I do now?
My system is MacOS High Sierra 10.13.3, Xcode Version is 9.3

[sgolodetz]

There was an issue with the C++ Standard Library on Mavericks (which is what I have on my laptop). I don't have access to a High Sierra system on which to get things working unfortunately, but if you do a search through the scripts for libstdc++, it should be possible to modify them to make everything build with libc++ again instead of libstdc++ (I was forcing it to the latter on Mavericks). A good starting point is probably:

https://github.com/torrvision/spaint/blob/master/cmake/Flags.cmake

There may be other scripts that mention it (perhaps look at the build scripts in the libraries directory). Also, bear in mind that InfiniTAM will need modifying similarly.

[sgolodetz]

So having a quick look, the Boost build has this:

if [ $PLATFORM == "mac" ]
then
  if [ "$OSXVERSION" -ge 13 ]
  then
    STDLIBFLAGS='cxxflags="-stdlib=libstdc++" linkflags="-stdlib=libstdc++"'
  fi
else
  STDLIBFLAGS='cxxflags="-std=c++11"'
fi

However, the OpenCV build (for example) has this:

if [ $PLATFORM == "mac" ]
then
  CMAKE_CXX_FLAGS="-stdlib=libstdc++"
  CMAKE_EXE_LINKER_FLAGS="-stdlib=libstdc++"
else
  CMAKE_CXX_FLAGS=""
  CMAKE_EXE_LINKER_FLAGS=""
fi

On Mavericks, it won't make a difference, but for you it will, because I'm not checking the version of OS X in the OpenCV case.

Probably what needs doing is going through the scripts and making sure that it's only using libstdc++ on OS X Mavericks, and not on anything else.

[uni4th]

OK, but since time is limited I may try it tomorrow. Thank you very much.

[sgolodetz]

@uni4th: Any luck?