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Re: Android port

From: Po Lu
Subject: Re: Android port
Date: Sun, 19 Feb 2023 20:21:32 +0800
User-agent: Gnus/5.13 (Gnus v5.13)

Arsen Arsenović <arsen@aarsen.me> writes:

> Hi,
> While building initially, I got some make errors that looked like they
> were from a race, for example:
>     GEN         execinfo.h
>   mv: cannot stat 'execinfo.h-t': No such file or directory
> Further confirming my suspicion that these are coming from a race is
> Emacs compiling fine if make is reinvoked, and that a non-parallel make
> build works fine.
> I figured this was a fluke initially, but, I reproduced the issue today.
> You can fetch the build log from here:
> https://www.aarsen.me/~arsen/emacs-races.script
> There also appears to be a dependency missing between generating the APK
> and running the pdumper, or such, since I could re-run make after make
> concluded in the nonparallel case.

This should not be a problem, since the dumping happens on-device on

> This seems pretty reproducible on my machine, I suspect due to the large
> number of -t files utilized in Gnulib.

I will look into this, thanks.

> While I'm around, I was also thinking about how to enable using the
> modifier keys on virtual keyboards without modifiers.  I was considering
> mapping a key, say, KEYCODE_VOLUME_DOWN to ESC if pressed and Ctrl if
> held in combination with another key, hence, the sequence Press VolDown,
> Release VolDown, Press VolDown, Type x, Release VolDown would be parsed
> as ESC C-x, or C-M-x.  Do you know if this is possible?  All methods
> that I know rely on external tools (XKB configs, AHK, ...) that are not
> available on android.

I'm not sure how to do this, since those keys are not ``meta modifiers''
on the system.

I'd recommend an on screen keyboard which has those modifier keys

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