[Good First Issue]: Compile OpenVINO on macOS with Xcode cmake generator

[ilya-lavrenov]

Context

OpenVINO is a cross platform product, which can be built with different compilers, their versions.
But different compilers and cmake generators can slightly adjust their option, so the product compilation emits warnings.

The proper way is to align compiler options, so the product compilation become less OS / compiler / cmake generator dependent.
E.g. if MSVC on Windows often emits signed / unsigned types conversion, we need to find similar option for Clang / GCC and enable by default and fix warnings.

With this task, you can understand simple OpenVINO data structures, get an experience with working with compiler flags, making a portable code base.

What needs to be done?

Run cmake with:

cmake -G Xcode -DCMAKE_COMPILE_WARNING_AS_ERROR=ON -S <openvino source> -B <build dir>

And build with:

cmake --build . --parallel --config Release -- -IDEBuildingContinueBuildingAfterErrors=YES

And fix all compilation errors, adjust cmake flags where it's needed.

Example Pull Requests

#19828

Resources

• What is OpenVINO?
• Contribution guide
• Blog post on contributing to OpenVINO
• User documentation

Contact points

@ilya-lavrenov

[pedrolinhares]

I would like to work on this issue.

[pedrolinhares]

@ilya-lavrenov I think I fixed most of the compile error but getting a link error now, it can't find libopenvino.2023.2.0.dylib in my Release folder. I think there is issue when building the shared library, if I look at my Release folder I see dylibs:

So, is it supposed to be like this? It looks like libopenvino.2320.dylib is supposed to be libopenvino.2023.2.0.dylib. What am I missing? Any idea why the shared library gets the wrong name?

[ilya-lavrenov]

Hi @pedrolinhares
Here we define a library version:

openvino/cmake/developer_package/version.cmake

Lines 228 to 238 in affceaa

	function(ov_add_library_version library)
	if(NOT DEFINED OpenVINO_SOVERSION)
	message(FATAL_ERROR "Internal error: OpenVINO_SOVERSION is not defined")
	endif()
	if(ENABLE_LIBRARY_VERSIONING)
	set_target_properties(${library} PROPERTIES
	SOVERSION ${OpenVINO_SOVERSION}
	VERSION ${OpenVINO_VERSION})
	endif()
	endfunction()

Which in fact creates:

libopenvino.dylib => symlink to libopenvino.2320.dylib
libopenvino.2320.dylib => symlink to libopenvino.2023.2.0.dylib
libopenvino.2023.2.0.dylib

Could you please send as a PR your intermediate changes?

Some information about this property here https://cmake.org/cmake/help/latest/prop_tgt/VERSION.html#mach-o-versions. Maybe you need to try to use macOS specific properties described there