13:09 <Putonlalla> Is there a way to remove the limitation that prevents using `define-macro` from `compatibility/defmacro` with `#lang r5rs`?

13:10 <Putonlalla> I just want to generate named definitions, a bit like `struct` does.

13:11 <Putonlalla> Anything I try is met with `macro-transformer: only a 'syntax-rules' form is allowed`.

13:37 <Zambyte> Hi, I'm having trouble importing some R7RS code. I have a file in a folder ~/src/ra called ra.rkt (so ~/src/ra/ra.rkt). I have a (define-library (ra) ...) in that file with #lang r7rs. If I run racket -I r7rs -S ~/src/ra and try to (import (ra)) it says collection not found. Anyone know what I may be doing wrong?

13:38 <Zambyte> I have the r7rs-racket package successfully installed - I can (import (scheme ...)) libraries just fine

14:30 <Zambyte> I figured it out. I needed to move ~/src/ra/ra.rkt to ~/src/ra/main.rkt.

15:08 <Putonlalla> Looks like it's equally impossible to use `define-syntax-parameter` from `racket/stxparam` with `#lang r5rs`.

15:09 <Putonlalla> Thus, the examples from SRFI 139 don't work.

17:35 <samth> Putonlalla: why are you using r5rs?

20:52 <mwnaylor> How difficult is it to write a Racket application with one operating system and cross compile a native executable for another? Use case: coding on 64-bit Linux to run on 64 bit Windows 10. Not possible to install Racket on the Windows system to run as a script.

20:53 <samth> mwnaylor: see `raco cross`: https://docs.racket-lang.org/raco-cross/

20:56 <mwnaylor> samth: I had seen that briefly. What I am asking is is it a simple process or does it take a lot work to get it right?

20:57 <samth> mwnaylor: it should be very simple

20:59 <mwnaylor> samth: I die the simples raco thing to make an executable on my Linux box. A simple "Hello, World" app wound up bing 7+ MB.

20:59 <mwnaylor> s/die/did/

20:59 <samth> mwnaylor: yes, that's expected

20:59 <samth> it includes the racket runtime

21:01 <mwnaylor> Can that 7MB be trimmed? I'm more familiar with Clojure. I think there is a tool that will strip out unused classes from an uberjar. Is there something similar for raco?

21:02 <samth> mwnaylor: no; that 7MB is more like the JVM itself in the clojure context

21:03 <samth> unless your hello world was using more libraries, in which case it's probably just the large number of libraries involved

21:03 <samth> but as to raco cross, it's quite easy to use including for cross-compilation but will not reduce the size of binaries

21:13 <mwnaylor> I guess it's a matter of perspective. If I wrote 50 tiny apps, the 7Mb for each seem a lot. But, for one really big app, an extra that extra 7Mb really isn't much.

21:13 <mwnaylor> samth: Are you familiar w/ Clojure?

21:13 <samth> mwnaylor: yes

21:14 <mwnaylor> Comparing raco built executables and uberjars, which tends to have the longer start-up times?

21:15 <samth> mwnaylor: i don't think i'm familar enough with clojure to estimate that, but it's really going to depend on a lot of details

21:15 <samth> neither one is particularly fast to start up, though

21:19 <mwnaylor> samth: I get that. If I really want to know, I should write "Hello, World" in both and average, say 10k, runs of each. I figured I'd just toss the question out to see if someone else had already done the heavy lifting.

21:19 <samth> #lang racket/base "hello world" is about 200 ms on my machine

21:23 <mwnaylor> Where does racket/raco store downloaded modules. I know that lein pulls them into my local .m2 directory. What I'm asking is if package xyz gets downloaded for project A, will it be available without download for project B? I'm often offline with my laptop.

21:24 <mwnaylor> no, I have not read the raco documentation yet.

21:46 <Tuplanolla> Oh, `only a 'syntax-rules' form is allowed` stems from forgetting to import some pieces `for-syntax`. That's silly!