04:30 <lechner> Hi, I am showing my son some Scheme with graphics. Using #lang slideshow, We would like to run something like (hc-append (map cicle '(1 2 3 4 5 6 7 8 9 10))) but we are getting an error. Can you please help?

06:23 <_________> lechner: 1. you have typo in 'cicle' 2. hc-append doesn't accept list of pics but variable number of arguments, instead of `(hc-append ...)` do `(apply hc-append ...)`

13:20 <ennoausberlin> Hello. I wonder if aarch64 is supported again anytime soon. I see there Apple silicon versions, but with the turn to chez based racket, aarch64 seems abandoned

14:41 <bremner> ennoausberlin: fwiw, in debian we just build the BC racket on aarch64. I don't know how many users it has, but I haven't had any bug reports

14:43 <ennoausberlin> bremner: So is there a possibility to build 8.7 without chez?

14:45 <bremner> ah, sorry, still on 8.6

14:45 <bremner> that will be a problem for us if not

14:46 <bremner> was there some announcement about deprecation of BC racket?

14:47 <ennoausberlin> I ask, because on GUIX there is a racket 8.6 package definition and it works on x86 but not on aarch64 telling me aarch64 is not supported.

14:47 <bremner> hmm. In 8.6 aarch64 is built for debian. So it might be a guix packaging choice

14:47 <leah2> void has racket on aarch64

14:48 <ennoausberlin> I might have to provide some configure flags than?

14:48 <leah2> we do some magick to build a CS first

14:49 <leah2> https://github.com/void-linux/void-packages/blob/master/srcpkgs/racket/template

14:50 <bremner> ennoausberlin: afaik, --enable-bcdefault

14:56 <ennoausberlin> I just skimmed over Guix racket.scm and found a package definition for racket-vm-bc. https://git.savannah.gnu.org/cgit/guix.git/tree/gnu/packages/racket.scm#n390

14:56 <ennoausberlin> That might do the trick to replace the cs vm with bc vm on the racket-minimal package definition

14:57 <samth> ennoausberlin: aarch64 should be supported already on Racket CS

14:58 <samth> ennoausberlin: see https://github.com/racket/ChezScheme which lists it as supported

14:58 <bremner> huh. TIL.

14:58 <bremner> oh, indeed I misread the debian rules file

14:59 <bremner> we also (apparently) build racket-cs for arm64 and armhf

14:59 <bremner> I forget exactly what 32 bit arm variant armhf is, other than having hardware float

15:00 <leah2> works on armv6 and armv7 for us (we dont do armv5)

15:01 <ennoausberlin> samth: So the guix package definition should be adopted to reflect this. I will have a look later this week. That sounds nice. So far I use clisp on my arm machines, because with sbcl and racket I ran into problems. So there is hope.

16:13 <samth> ennoausberlin: that's up the the guix maintainers, but if you have trouble building for aarch64, please file a bug report

16:15 <leah2> oh 8.7 is tagged now

16:17 <leah2> risc-v <3

16:20 <leah2> i hope these improvements all go back to chez at some point

17:15 <lechner> _________ / thanks!

17:16 <_________> np :)

17:17 <lechner> _________ / sorry about the confusion. i switched to a new IRC client and have poor vision. Your nick is stealthy!

17:18 <_________> ok, no worries

17:18 <lechner> _________ / also, your advice worked great. my son loved racket almost as much as MIT's scratch