Beginners August 2020

beginners@lists.squeakfoundation.org

6 participants
4 discussions

Thanks to John-Reed and Christof
by Albert Wagner 27 Aug '20

27 Aug '20

Thanks to John-Reed and Christof for replies in digest 162-3. Christof, I followed your link for ExternalWebBrowser and downloaded it. But...I realized that I am a long way from installing it. I did Smalltalk a long time ago (20+ years) on IBM's Visual Age and prior to that, Smalltalk/VDos. But Squeak is an unrecognizable monster compared to Smalltalk that long ago. I am totally lost. The only thing that looks familiar is the TerseGuide and it is readOnly. Back-in-the-day that info was the live content of the one and only hierarchy browser. I can find no current books on Squeak. So I am just shooting in the dark. I'll get back to you when I can ask an intelligent question. Sorry, but I sent this first to the beginners-request list. I hope you can untangle it there.

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Unrecognized web browser
by Albert Wagner 24 Aug '20

24 Aug '20

After clicking on a URL in Squeak I received a popup: "There is no Web browser installed but the URL was copied to the clipboard: http://lists.squeakfoundation.org/mailman/listinfo/beginners" I am running on Linux MX and my default web browser is Waterfox. All other URLs are OK with that. What can I do to inform Squeak that I do have a browser installed?

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Has anyone gotten FFI working on squeak on a Mac lately?
by LawsonEnglish 15 Aug '20

15 Aug '20

I realize that the test library works, but I can’t use ANY kind of library user specified/user made library for FFI with Squeak on Catalina OR Mojave, and I can’t tell what I am doing wrong. I let Craig Latta watch me, via screen sharing on skype, set up the whole thing from scratch, and his response was to start to coach me in how to create and use the VM with a c-debugger. So I don’t think I’m doing anything obviously wrong or at least Craig didn’t catch it while he watched. Still don’t have the VM working, so I thought I ask if anyone has actually done it lately? The FFIPrim libray is in a .bundle, which may or may not be signficiant to this issue. L

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FFI and mpfr calls in squeak
by LawsonEnglish 14 Aug '20

14 Aug '20

So I tested a simple mandelbrot set rendering algorithm using the ArbitraryPrecisionFloat package and it works just fine, but terribly slowly. So I had the idea of using mpfr via FFI and find that I can’t even begin. I’m getting the dreaded External module not found error and just can’t get rid of it. I thought I was taking the easy route and simply copying the mpfr library into the Squeak all-in-one Resources directory but no matter what I try, that error pops up. initPrecision: aDefaultPrecision “initialize default precision" <cdecl: void 'mpfr_init' (long ) module:'libmpfr.6.dylib'> ^self externalCallFailed This is roughly the “hello world” of using mpfr, I thought, but can’t even do that. Now, waiting in the wings is a bigger problem, I think: the mpfr library uses the gmp library. So how does one do THAT with squeak? Compile both libraries into a single target? (yikes!). That might be an issue later on, but the impression I’m getting is that squeak simply can’t find libmpfr.6.dylib, so errors that result from calling a second library from the first haven’t even popped up yet. Squeak5.3-19435-64bit, Mac OS X 10.15.6 Thanks Lawson

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Beginners August 2020