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Re: Android port

From: Po Lu
Subject: Re: Android port
Date: Sun, 19 Feb 2023 22:16:25 +0800
User-agent: Gnus/5.13 (Gnus v5.13)

Po Lu <luangruo@yahoo.com> writes:

> 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
> Android.
>> 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
> instead.

Please see if the parallel build has been fixed.  Thanks.

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