Build opencv with cmake and bazel

[Jaonary Rabarisoa]

Hi all,

I'd like to build opencv with bazel and use it as a dependency of another projet built with bazel. Instead of creating from scratch the opencv.BUILD file, 

I want to use cmake since it's straightforward to build opencv with cmake. Is it possible to create a custom build rule with bazel that calls

cmake and make from behind ?

Best,

Jaonary

[Damien Martin-guillerez]

Theoritically you could use a genrule to call cmake. You might have to craft the environment for CMake to work well.

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[Alex Humesky]

There's also this discussion on stackoverflow: http://stackoverflow.com/questions/34984290/building-opencv-code-using-bazel

To view this discussion on the web visit https://groups.google.com/d/msgid/bazel-discuss/CAN3hOS-wTeoHC6Vhh%2BV6ivAqH2EE_WZJAfuctEfd2hroaJVSdA%40mail.gmail.com.

[Brian Edmonds]

On Friday, June 10, 2016 at 10:05:48 AM UTC-7, Alex Humesky wrote:

There's also this discussion on stackoverflow: http://stackoverflow.com/questions/34984290/building-opencv-code-using-bazel

I've been playing around with this, and have yet to have satisfactory luck building opencv as an external dependency. Is there a bazel wiki, or some other repository of community wisdom on best practices for integrating external packages, and other bazel tips and tricks? Seems like it would be great to be able to reference such a thing when pulling in a new package, and leverage the blood, sweat and tears of prior attempts. Has no one actually done this successfully yet? The stackoverflow article is just suggested approaches, not a report of one or more ways that are being used in practice.

Brian.