timur's profile - activity

We have tried to compile OpenCV 3.4 on Ubuntu but with no success.

The compilation fails on cmake. We keep fixing the errors, but it just keeps throwing up more and more errors. We have made sure we have installed the dependencies required.

Can someone please provide a place we can get a compiling version of OpenCV 3.x for Ubuntu?

Out cmake options:

---------------------------------
ubuntu@machine:~/app/opencv/build$ cmake -D BUILD_TIFF=ON -D WITH_CUDA=OFF -D ENABLE_AVX=OFF -D WITH_OPENGL=ON -D WITH_OPENCL=OFF -D WITH_IPP=OFF -D WITH_TBB=ON -D BUILD_TBB=ON -D WITH_EIGEN=OFF -D WITH_V4L=OFF -D WITH_VTK=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=OFF -D WITH_FFMPEG=ON -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D OPENCV_EXTRA_MODULES_PATH=/opt/opencv_contrib/modules ..
---------------------------------

There are lots of errors and when we fix one, it throws another after another.... a bottomless well of errors.

Can someone please provide us with a compiled version?

Thanks in advance.

Tim & team

ADDED: Compilation errors

(1) I get compilation switch errors for

‘-Wmissing-prototypes’   
‘-Wstrict-prototypes’ .  




--------------------------
Build output check failed: Regex: 'command line option .* is valid for .* but not for C++' Output line: 'cc1plus: warning: command line option ‘-Wmissing-prototypes’ is valid for C/ObjC but not for C++' Compilation failed: source file: '/home/ubuntu/app/opencv/build/CMakeFiles/CMakeTmp/src.cxx'

check option: ' -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -W
 gravatar imagetimur (51 mins ago)edit
-----------------------------------

(2) Also errors:

"valid for C++/ObjC++ but not for C"
for switches    
‘-Wsign-promo’ 
‘-Wsuggest-override’ 
‘-Wno-delete-non-virtual-dtor’ 
‘-fvisibility-inlines-hidden’

(3) Also errors:

 'cc1plus: warning: unrecognized command line option  
for  
‘-Wno-unnamed-type-template-args’'     
‘-Wno-implicit-fallthrough’  
‘-Wno-unused-private-field’  
‘-Wno-tautological-undefined-compare’  
‘-Wno-shorten-64-to-32’  
‘-Wno-enum-compare-switch’  
‘-Wno-inconsistent-missing-override’   
‘-Wno-unused-private-field’

(4) Also "not recognising INT8, INT16, INT32 "error which arises from 3rd party module 3rdparty/libtiff/CMakeLists.txt (line 166)

#Nonstandard int types  
if(NOT MSVC)  
  check_type_size(INT8 int8)  
  set(HAVE_INT8 ${INT8})    
  check_type_size(INT16 int16)  
  set(HAVE_INT16 ${INT16})  
  check_type_size(INT32 int32)  
  set(HAVE_INT32 ${INT32})  
endif()

--------------------- Error -------------------------------------------

Determining size of INT8 failed with the following output:  
Change Dir: /home/ubuntu/app/opencv/build/CMakeFiles/CMakeTmp  

Run Build Command:"/usr/bin/make" "cmTC_ef0b7/fast"  
/usr/bin/make -f CMakeFiles/cmTC_ef0b7.dir/build.make CMakeFiles/cmTC_ef0b7.dir/build  
make[1]: Entering directory '/home/ubuntu/app/opencv/build/CMakeFiles/CMakeTmp'  
Building C object CMakeFiles/cmTC_ef0b7.dir/int8.c.o  
/usr/bin/cc    -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address - 
Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden  -O3 -DNDEBUG -fPIE   -o CMakeFiles/cmTC_ef0b7.dir/int8.c.o   -c /home/ubuntu/app/opencv/build/CMakeFiles/CheckTypeSize/int8.c  
/home/ubuntu/app/opencv/build/CMakeFiles/CheckTypeSize/int8.c:17:22: error: ‘INT8’ undeclared here (not in a function)  
 #define SIZE (sizeof(INT8))

CMAKE OUTPUT

ubuntu@ip-172-31-19-76:~/app/opencv/build cd ..;rm -rf build; mkdir build; cd build/ubuntu@ip-172-31-19-76:~/app/opencv/build cmake -D BUILD_TIFF=ON -D WITH_CUDA=OFF -D ENABLE_AVX=OFF -D WITH_OPENGL=ON -D WITH_OPENCL=OFF -D WITH_IPP ...