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Re: [Chicken-users] Is Android not unix?

From: Kristian Lein-Mathisen
Subject: Re: [Chicken-users] Is Android not unix?
Date: Mon, 26 Nov 2018 07:26:21 +0300

I don't know how UserLand works, but there's no containerization in Termux. It's just an terminal emulator with its own package manager with quite a few packeges like emacs, gnu make and clang. So building CHICKEN is pretty straight forward.


On Mon, Nov 26, 2018, 06:46 elf <address@hidden wrote:
I had no problem compiling chicken in termux (though occasionally there are linkage warnings on android6).

My understanding is that android is basically stripped down linux with a java overlord layer. No compatibility layer necessary. This is borne out by my current work on cross-system randomness - it behaves exactly like a linux machine, with the same syscalls, etc.

(Which reminds me. If anyone has a bsd box i can get a login for, it would be much appreciated. Im trying to do a chicken wrapper for true randomness using sidechannel effects... so something that looks platform independent.)


On 26 November 2018 5:15:03 GMT+02:00, Matt Welland <address@hidden> wrote:
>Isn't Termux similar to UserLand - a compatibility layer of sorts
>similar to LXC or LXD? If so, I would not be surprised to see
>incompatibilities. I had to do several hacks to get IUP working on
>On Mon, 2018-11-19 at 13:10 +0100, Thomas Chust wrote:
>> On Mon, 19 Nov 2018 13:19:10 +0300 Kristian Lein-Mathisen <kristianle
>> address@hidden> wrote:
>> >
>> > [...]
>> > I was trying tweetnacl on Termux on Android 9 and ran into this
>> > problem:
>> >
>> > address@hidden ~/p/chicken-5.0.0>
>> > csi -R tweetnacl -p '(make-symmetric-sign-key)'
>> >
>> > Error: (read-u8vector) bad argument type - not a port: #f
>> > ....
>> >
>> > This happens because tweetnacl creates its current-entropy-port
>> > using
>> > cond-expand with unix, windows or else, the latter which is
>> > yielding the #f
>> > error above.
>> > [...]
>> Hello,
>> interesting, I would have thought that Android would qualify as a
>> unixoid system since it has a Linux kernel! If there is some other
>> feature identifier I should use that would indicate the system likely
>> supports /dev/random, please let me know so I can adapt the tweetnacl
>> code.
>> Anyway, as a workaround to get tweetnacl running, you can simply do
>>   (current-entropy-port (open-input-file "/dev/random"))
>> by hand.
>> I hope that helps :-)
>> Ciao,
>> Thomas
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