Compile a core of libretro to a specific commit version

laguna

Hello good day,

Would it be possible to compile a core of libretro to a desired commit version ??

I need to modify this script:
https://github.com/RetroPie/RetroPie-Setup/blob/master/scriptmodules/libretrocores/lr-picodrive.sh
to compile this commit:
https://github.com/libretro/picodrive/commit/eaac037a9e331e8b26a77239d8dd96b76f86515e

Anyone who knows how to write the code, can I pass the modified lr-picodrive.sh file to replace it with mine?

Thank you very much, greetings !!!!!

mitu

What's the purpose of this ? If you install from source the emulator, this commit should already be included.

laguna

The goal would be to have the same core version of a friend to play online with him ... he has the picodrive version of the commit that I quoted before, and I would need to compile that version. since he has not connected the raspberry to the network and can not update picodrive to the last source.

Thank you!!

mitu

Wouldn't it be easier - if you both have RetroPie - to update from binary the package ? It should get you the same version.

laguna

Yes, we already knew that it solves the problem, many thanks, but my goal was to know how to compile a specific commit of the core in question ...

thank you anyway.

mitu

@laguna said in Compile a core of libretro to a specific commit version:

Yes, we already knew that it solves the problem, many thanks, but my goal was to know how to compile a specific commit of the core in question ...

You can do that by adding the commit number as a parameter to the gitPullOrClone function that retrieves the sources. Support for this has been recently added, see
https://github.com/RetroPie/RetroPie-Setup/blob/master/scriptmodules/helpers.sh#L336.
However, any modifications to the setup script will interfere with the update so I don't recommend this. Of course you can create your own local branch so it will not affect updates, but using the binary is much simpler and less error prone.

laguna

@mitu

Thank you very much for the reply!!

The bad thing is that I do not know how to write code ... and I'm not sure where I should write the commit (eaac037a9e331e8b26a77239d8dd96b76f86515e) and with what syntax ...

Please, if it is not too much trouble, if I could write the line that I should include in the ir-picodrive.sh and in what position, I compile and see if it works !!!

many thanks!!!