Solutions for Problems Building on Mac OS X

[TomHeaven]

I've managed to compile and test AliceVision and Meshroom on Mac OS. I write down those tricks and hope this will help improve the project.

I use Mac OS 10.12.6, XCode 8.0 and CUDA 9.0 and I've alreadly installed Homebrew, Nvidia webdriver as well as CUDA driver.

AliceVision

Install dependencies

brew install libomp
brew link --overwrite libomp
brew install openimageio
brew install ceres-solver
brew install geogram
# Alembic
git clone https://github.com/alembic/alembic
cd alembic; mkdir build; cd build
cmake ../ -DUSE_PYTHON=ON
make -j4
make install

Clone source

git clone --recursive https://github.com/alicevision/AliceVision
git checkout v2.0.0

• Modify the project's CMakeList.txt to support C++11 and OpenMP. Add those lines under the Project line.

include_directories("/usr/local/opt/libomp/include")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11  ")
set(OpenMP_C_FLAGS " -Xpreprocessor -fopenmp -lomp -lgomp ")
set(OpenMP_CXX_FLAGS " -Xpreprocessor -fopenmp -lomp -lgomp ")

• Detection of C++11 always fails on Mac. Let's just discard it by comment out those two lines in src\CMakeList.txt

#if(NOT CXX11_COMPILER)
# message(FATAL_ERROR "The compiler does not support the CXX11 standard.")

• Detection of OpenMP always fails on Mac. Let's just comment out the detection logic in src\CMakeList.txt

 #if(OPENMP_FOUND)
    set(ALICEVISION_HAVE_OPENMP 1)
    message(STATUS "OpenMP found.")
  #elseif(ALICEVISION_USE_OPENMP STREQUAL "ON")
  # set(ALICEVISION_HAVE_OPENMP 0)
  # message(SEND_ERROR "Failed to find OpenMP.")
  #else()
  # set(ALICEVISION_HAVE_OPENMP 0)
  #endif()

• There is another OpenMP detection in src/dependencies/flann/CMakeList.txt, just add those two lines at the top:

set(OpenMP_C_FLAGS " -Xpreprocessor -fopenmp -lomp -lgomp ")
set(OpenMP_CXX_FLAGS " -Xpreprocessor -fopenmp -lomp -lgomp ")

and comment out this line

message(WARNING "OpenMP NOT found")
#set(USE_OPENMP OFF)

• Update source file src/aliceVision/robustEstimation/randSampling.hpp

//std::vector<IntT> result(std::make_move_iterator(samples.begin()),
    // std::make_move_iterator(samples.end()));
      std::vector<IntT> result(samples.begin(),
                               samples.end());

• Update source src/aliceVision/sfmDataIO/AlembicExporter.cpp line 255 as

const sfmData::LandmarksUncertainty noUncertainty = HashMap<IndexT, Vec3>();

Start normal compilation

mkdir build
cd build
cmake ..
make -j4
make install

Meshroom

Compilation of Meshroom is much simpler:

git clone --recursive git://github.com/alicevision/meshroom
cd meshroom
pip install -r requirements.txt
pip install cx_Freeze
sudo python setup.py install 

• If you are using python 2.7, add those three lines at top of meshroom/__init__.py to avoid unicode error:

import sys
reload(sys)
sys.setdefaultencoding('utf8')

At last, start meshroom

python meshroom/ui

[FunWithFlaggs]

Thanks for the info! However i guess im still having OpenMP problems.. i get the following half way through the build:

[ 40%] Linking CXX shared library ../../../Darwin-x86_64/libaliceVision_image.dylib Undefined symbols for architecture x86_64: "___kmpc_dispatch_init_4", referenced from: _.omp_outlined. in convolution.cpp.o _.omp_outlined..1 in convolution.cpp.o _.omp_outlined..2 in convolution.cpp.o "___kmpc_dispatch_next_4", referenced from: _.omp_outlined. in convolution.cpp.o _.omp_outlined..1 in convolution.cpp.o _.omp_outlined..2 in convolution.cpp.o "___kmpc_fork_call", referenced from: aliceVision::image::SeparableConvolution2d(Eigen::Matrix<float, -1, -1, 1, -1, -1> const&, Eigen::Matrix<float, 1, -1, 1, 1, -1> const&, Eigen::Matrix<float, 1, -1, 1, 1, -1> const&, Eigen::Matrix<float, -1, -1, 1, -1, -1>*) in convolution.cpp.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation) make[2]: *** [Darwin-x86_64/libaliceVision_image.2.0.dylib] Error 1 make[1]: *** [src/aliceVision/image/CMakeFiles/aliceVision_image.dir/all] Error 2

configured with: cmake .. -DOPENIMAGEIO_INCLUDE_DIR=/usr/local/opt/openimageio/include -DOPENIMAGEIO_LIBRARY=/usr/local/opt/openimageio/lib/libOpenImageIO.dylib

Im on 10.13.6 using clang 9.1.0 (downgraded), XCode 10.1 and CUDA 10.

[natowi]

Reference MR#204

[FunWithFlaggs]

i know, i provided my compiled version there. I also got those installed and running on a fresh osx installation with a bit of tweaking. But its without OpenMP support so i tried to recompile it and this is what i got.

[natowi]

@FunWithFlaggs This was not intended as an reply to your post. Just wanted to reference both issues for other users.

[ot6nyu]

This got me through cmake, but not make:

[ 42%] Building CXX object src/dependencies/osi_clp/CoinUtils/src/CMakeFiles/lib_CoinUtils.dir/CoinWarmStartBasis.cpp.o
In file included from /Volumes/SD512A/AliceVision/src/aliceVision/image/io.cpp:9:
In file included from /Volumes/SD512A/AliceVision/src/aliceVision/image/all.hpp:21:
In file included from /Volumes/SD512A/AliceVision/src/aliceVision/image/diffusion.hpp:11:
/Volumes/SD512A/AliceVision/src/aliceVision/alicevision_omp.hpp:11:5: error: invalid
token at start of a preprocessor expression
#if ALICEVISION_IS_DEFINED(ALICEVISION_HAVE_OPENMP)
^
/Volumes/SD512A/AliceVision/build/src/generated/aliceVision/config.hpp:4:39: note:
expanded from macro 'ALICEVISION_IS_DEFINED'
#define ALICEVISION_IS_DEFINED(F) F() == 1
^
[ 42%] Building CXX object src/dependencies/MeshSDFilter/CMakeFiles/OpenMesh.dir/external/OpenMesh/Tools/Smoother/LaplaceSmootherT.cc.o
1 error generated.
make[2]: *** [src/aliceVision/image/CMakeFiles/aliceVision_image.dir/io.cpp.o] Error 1
make[1]: *** [src/aliceVision/image/CMakeFiles/aliceVision_image.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....

osx 10.12.6, xcode 9.2
Apple LLVM version 9.0.0 (clang-900.0.39.2)
Cuda compilation tools, release 9.1, V9.1.128

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