Make stops everytime on a different file - makefile

Question

I'm trying to compile some libraries with make, such as Opencv and I'm just curious about it's behaviour. When I run make for example 3 times, it stops and gives error on different files each time while linking. There's also different percentage each time. What does it mean? Make builts targets always in different order or what?
[edit] add output of make, don't know if anything can be find out from it.
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[ 72%] Building CXX object modules/datasets/CMakeFiles/example_datasets_slam_tumindoor.dir/samples/slam_tumindoor.cpp.o
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[ 72%] Building CXX object modules/datasets/CMakeFiles/example_datasets_tr_svt_benchmark.dir/samples/tr_svt_benchmark.cpp.o
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[ 72%] Building CXX object modules/datasets/CMakeFiles/example_datasets_track_vot.dir/samples/track_vot.cpp.o
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[ 72%] Building CXX object modules/rgbd/CMakeFiles/opencv_test_rgbd.dir/test/test_normal.cpp.o
[ 72%] Building CXX object modules/rgbd/CMakeFiles/opencv_test_rgbd.dir/test/test_odometry.cpp.o
[ 73%] Building CXX object modules/rgbd/CMakeFiles/opencv_test_rgbd.dir/test/test_precomp.cpp.o
[ 73%] Building CXX object modules/rgbd/CMakeFiles/opencv_test_rgbd.dir/test/test_main.cpp.o
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[ 75%] Generating opencl_kernels_superres.cpp, opencl_kernels_superres.hpp
[ 75%] Building NVCC (Device) object modules/superres/CMakeFiles/cuda_compile.dir/src/cuda/./cuda_compile_generated_btv_l1_gpu.cu.o
/home/tomas/Downloads/opencv-3.0.0/modules/superres/src/cuda/btv_l1_gpu.cu: In function ‘void btv_l1_cudev::upscale(cv::cuda::PtrStepSzb, cv::cuda::PtrStepSzb, int, cudaStream_t)’:
/home/tomas/Downloads/opencv-3.0.0/modules/superres/src/cuda/btv_l1_gpu.cu:129:67: warning: typedef ‘src_t’ locally defined but not used [-Wunused-local-typedefs]
typedef typename TypeVec<float, cn>::vec_type src_t;
^
/home/tomas/Downloads/opencv-3.0.0/modules/superres/src/cuda/btv_l1_gpu.cu: In function ‘void btv_l1_cudev::calcBtvRegularization(cv::cuda::PtrStepSzb, cv::cuda::PtrStepSzb, int)’:
/home/tomas/Downloads/opencv-3.0.0/modules/superres/src/cuda/btv_l1_gpu.cu:224:67: warning: typedef ‘src_t’ locally defined but not used [-Wunused-local-typedefs]
typedef typename TypeVec<float, cn>::vec_type src_t;
^
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[ 80%] Building CXX object modules/xfeatures2d/CMakeFiles/opencv_test_xfeatures2d.dir/test/test_detectors.cpp.o
[ 80%] Building CXX object modules/xfeatures2d/CMakeFiles/opencv_test_xfeatures2d.dir/test/test_surf.cuda.cpp.o
[ 80%] Building CXX object modules/xfeatures2d/CMakeFiles/opencv_test_xfeatures2d.dir/test/test_features2d.cpp.o
[ 80%] Building CXX object modules/xfeatures2d/CMakeFiles/opencv_test_xfeatures2d.dir/test/test_keypoints.cpp.o
[ 80%] Building CXX object modules/xfeatures2d/CMakeFiles/opencv_test_xfeatures2d.dir/test/test_rotation_and_scale_invariance.cpp.o
[ 80%] Building CXX object modules/xfeatures2d/CMakeFiles/opencv_test_xfeatures2d.dir/test/test_surf.ocl.cpp.o
[ 80%] Building CXX object modules/xfeatures2d/CMakeFiles/opencv_test_xfeatures2d.dir/test/test_main.cpp.o
Linking CXX executable ../../bin/opencv_test_xfeatures2d
[ 80%] Built target opencv_test_xfeatures2d
[ 81%] Built target opencv_ximgproc_pch_dephelp
[ 81%] Built target pch_Generate_opencv_ximgproc
[ 81%] Building CXX object modules/ximgproc/CMakeFiles/opencv_ximgproc.dir/src/sparse_match_interpolators.cpp.o
In file included from /home/tomas/Downloads/opencv-3.0.0/modules/core/include/opencv2/core.hpp:54:0,
from /home/tomas/Downloads/opencv-3.0.0/build/modules/ximgproc/precomp.hpp:40:
/home/tomas/opencv_contrib/opencv_contrib/modules/ximgproc/src/sparse_match_interpolators.cpp: In member function ‘virtual void cv::ximgproc::EdgeAwareInterpolatorImpl::interpolate(cv::InputArray, cv::InputArray, cv::InputArray, cv::InputArray, cv::OutputArray)’:
/home/tomas/opencv_contrib/opencv_contrib/modules/ximgproc/src/sparse_match_interpolators.cpp:171:52: error: ‘const class cv::_InputArray’ has no member named ‘isVector’
CV_Assert( !from_points.empty() && from_points.isVector() &&
^
/home/tomas/Downloads/opencv-3.0.0/modules/core/include/opencv2/core/base.hpp:389:33: note: in definition of macro ‘CV_Assert’
#define CV_Assert( expr ) if(!!(expr)) ; else cv::error( cv::Error::StsAssert, #expr, CV_Func, __FILE__, __LINE__ )
^
/home/tomas/opencv_contrib/opencv_contrib/modules/ximgproc/src/sparse_match_interpolators.cpp:172:52: error: ‘const class cv::_InputArray’ has no member named ‘isVector’
!to_points .empty() && to_points .isVector() &&
^
/home/tomas/Downloads/opencv-3.0.0/modules/core/include/opencv2/core/base.hpp:389:33: note: in definition of macro ‘CV_Assert’
#define CV_Assert( expr ) if(!!(expr)) ; else cv::error( cv::Error::StsAssert, #expr, CV_Func, __FILE__, __LINE__ )
^
make[2]: *** [modules/ximgproc/CMakeFiles/opencv_ximgproc.dir/src/sparse_match_interpolators.cpp.o] Error 1
make[1]: *** [modules/ximgproc/CMakeFiles/opencv_ximgproc.dir/all] Error 2
make: *** [all] Error 2

Answer 1

To answer your direct questions, not related to why your builds are failing:
If you run make with the -j option it enables parallelism, which means many jobs run at the same time. Depending on how long jobs take, which jobs succeeded last time vs. which are left to run, etc. it could be that they are started in a different order each time. If you want a reproducible build that fails at the same place every time, don't use the -j flag.
If you run make with the -k flag, it will keep going even after a failure, until it runs out of things that could be built without relying on any failed targets. If you want make to stop immediately when it hits the first error, don't provide either the -k or -j flags to make.
Make itself doesn't know any percentage of completed builds: it just starts building things and when it can't find anything else to build, it stops... so it has no idea how many more things are left to build. CMake adds this percentage info to the makefiles it generates, and it's just a guesstimate.