OpenCV Build process
As it turned out, the last question I asked about OpenCV crash was a bug in OpenCV 3.0.0 beta(the official version). It was released in 2014. Since, there have many commits to the master. Anyway, now I have decided to build the library myself from the latest master. Here is what I did.
I followed the steps described everywhere. I downloaded Cmake. Then I opened OpenCVGUI. Then I put the path to the source and build destination. Next, I selected Visual Studio 2013 and native compiler. I pressed configure. The problem is here:
I got the following:
The CXX compiler identification is MSVC 18.0.31101.0
The C compiler identification is MSVC 18.0.31101.0
Check for working CXX compiler using: Visual Studio 12 2013
Check for working CXX compiler using: Visual Studio 12 2013 -- works
Detecting CXX compiler ABI info
Detecting CXX compiler ABI info - done
Detecting CXX compile features
Detecting CXX compile features - done
Check for working C compiler using: Visual Studio 12 2013
Check for working C compiler using: Visual Studio 12 2013 -- works
Detecting C compiler ABI info
Detecting C compiler ABI info - done
Performing Test HAVE_CXX_FSIGNED_CHAR
Performing Test HAVE_CXX_FSIGNED_CHAR - Failed
Performing Test HAVE_C_FSIGNED_CHAR
Performing Test HAVE_C_FSIGNED_CHAR - Failed
Check if the system is big endian
Searching 16 bit integer
Looking for sys/types.h
Looking for sys/types.h - found
Looking for stdint.h
Looking for stdint.h - found
Looking for stddef.h
Looking for stddef.h - found
Check size of unsigned short
Check size of unsigned short - done
Using unsigned short
Check if the system is big endian - little endian
Looking for fseeko
Looking for fseeko - not found
Looking for unistd.h
Looking for unistd.h - not found
Check size of off64_t
Check size of off64_t - failed
Looking for assert.h
Looking for assert.h - found
Looking for fcntl.h
Looking for fcntl.h - found
Looking for io.h
Looking for io.h - found
Looking for jbg_newlen
Looking for jbg_newlen - not found
Looking for mmap
Looking for mmap - not found
Looking for search.h
Looking for search.h - found
Looking for string.h
Looking for string.h - found
Looking for unistd.h
Looking for unistd.h - not found
ICV: Downloading ippicv_windows_20141027.zip...
My question is: What should I do about the "not found" and "failed" statements. I think they are going to cause problem later on. Is there any way to include every not found file or its not necessary.
Also, after the configuration I got many NOT FOUND values. Example CUDA_SDK_ROOT_DIR-NOTFOUND and many more. If they are vital for the build, how am I gonna get em all. I don't have CUDA SDK or MATLAB installed. How do I build it? Can anyone reading this build it for me succesfully?
"What should I do about the "not found" and "failed" statements." - nothing ! that's all ok.
and yes, you can build without CUDA, MATLAB, OCL, or java support, none of it is a problem. it just checks for the existence of it, and tells you the outcome.
again, don't worry, real problems look different !