Compiling for Android

[Archimedes]

clang-16: error: unknown argument: '-fexperimental-new-pass-manager'

As an alternative use the makefile I use for CfishNN (the source code is included in the zip archive). But it is only for arm64-v8a.

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make net
make profile-build COMP=clang

[Kepcuk]

Thanks to all for helping. Can we embed ini settings file to engine? Also Archimedes can u look for requests? Thanks

[angel44e]

Hi,Archie! Could you explain how to compile OEX android engines with Android Studio like your first post in that topic,please?

[angel44e]

When I've compiled an engine by clang and it was compiled successfully(without any errors and warnings) it's failed to started in Droidfish in most cases.But when I've compiled the same engine by ndk there is no problem with it,what caused this?

[Archimedes]

You compiled under Termux? Does the chess engine work there?
Maybe -static-libstdc++ is missing. Another cause could be the wrong API level.

[angel44e]

Yes,Archie,I've compiled under Termux.How to check if the engine is working in Termux? I've installed Termux,then I've downloaded ndk,and then started your cecsa.sh to install all needed tools and I think it successfully done.And how to add -static-libstdc++ if missing?

[angel44e]

I've been running Android 11 API 30 if it depends.

[kramnik]

Archimedes: this vital page should be added to your Wiki Home:

https://sourceforge.net/p/chess-engines-for-android-oex/wiki/how-to-create-an-apk-file-for-texel/

The attached Texel project is fundamental as base to create new APKs.

Still, I see no tutorials about how to compile the Stockfish source into OEX (APK installer). With the newest Android releases there is a restriction which many chess apps adopted, so one cannot just compile the source to binary and use it to said apps anymore.

There is already a ready-made and documented Java library that can do this. You don't have to reinvent the wheel.

https://github.com/gkalab/chessenginesupport-androidlib

To see how it works, there is also an example for Stockfish.

Another example can be found here:
https://github.com/peterosterlund2/texelapp

And yet another example, adapted to a newer version of Android Studio, can be found here:
https://sourceforge.net/p/chess-engines-for-android-oex/wiki/home/

[angel44e]

Hi,Archie! How to compile for Android an engine with mostly header(.h) files in the source code, for example Clover 5.0?

[Archimedes]

Hi,Archie! How to compile for Android an engine with mostly header(.h) files in the source code, for example Clover 5.0?

As long as the source code is not just header files, there is hope (see main.cpp in the src directory). A look at the makefile of Clover would answer your question.

[superbatil]

I can not see it in /usr/bin/ on termux

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aarch64-linux-android21-clang++

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/data/data/com.termux/files/usr/bin

this is available, instead of (aarch64-linux-android21-clang
aarch64-linux-android21-clang++)

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aarch64-linux-android-ar
 aarch64-linux-android-clang
 aarch64-linux-android-clang++
 aarch64-linux-android-cpp
 aarch64-linux-android-g++
 aarch64-linux-android-gcc
 aarch64-linux-android-ld
 aarch64-linux-android-nm
 aarch64-linux-android-objdump
 aarch64-linux-android-ranlib
 aarch64-linux-android-readelf
 aarch64-linux-android-strip

[Archimedes]

I can not see it in /usr/bin/ on termux

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aarch64-linux-android21-clang++

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/data/data/com.termux/files/usr/bin

this is available, instead of (aarch64-linux-android21-clang
aarch64-linux-android21-clang++)

Code: Select all

aarch64-linux-android-ar
 aarch64-linux-android-clang
 aarch64-linux-android-clang++
 aarch64-linux-android-cpp
 aarch64-linux-android-g++
 aarch64-linux-android-gcc
 aarch64-linux-android-ld
 aarch64-linux-android-nm
 aarch64-linux-android-objdump
 aarch64-linux-android-ranlib
 aarch64-linux-android-readelf
 aarch64-linux-android-strip

May I ask what you are actually looking for?