Gambit-list Août 2007

gambit-list@iro.umontreal.ca

34 participants
37 discussions

[newbie] Unbound variable: compile-file
by andrew cooke 12 Aoû '07

12 Aoû '07

hi, i suspect i'm doing something stupid here, so apologies in advance, but i am seeing the following error: qp6 personal: gsi Gambit Version 4.0 beta 22 > (compile-file "/home/andrew/projects/personal/pkg/gambc-4.0b22/examples/pi/pi.scm") *** ERROR IN (console)(a)1.2 -- Unbound variable: compile-file i must admit i installed some time ago, but don't recall any problems. this is linux (suse 10.2 amd64), and i installed within a local directory. so i have: export GAMBIT_ROOT="/home/andrew/projects/personal/pkg/gambc-4.0b22/4.0b22" export PATH="$PATH:$GAMBIT_ROOT/bin" export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$GAMBIT_ROOT/lib" in my bashrc. i seem the error in emacs if i try to compile there (using gambit.el). any idea what is wrong? thanks, andrew ps also, is it possible to make the parens darker in emacs highlighting? which face is it? thanks!

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contributing to gambit scheme?
by Dan Farina 08 Aoû '07

08 Aoû '07

Hi, I am wondering what resources are available to those who would like to make occasional contributions to gambit-scheme in the form of patches or what not, if Gambit is accepting any. df

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Re: [gambit-list] Experience with the new compile options
by Guillaume Cartier 07 Aoû '07

07 Aoû '07

>> It seems like using --enable-optimize-space gives a faster build >> *and* faster execution. So maybe I will probably make this the >> default if I observe the same thing on other benchmarks. Just as a side note, when I was fiddling with Visual C++ compiler options on Windows, I noticed the exact same behavior where optimizing for speed versus optimizing for space gave only a marginal speed advantage and at a large compilation time premium. Guillaume

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Experience with the new compile options
by Bradley Lucier 07 Aoû '07

07 Aoû '07

Marc: I've had a lot of experience now with the new compile options (and I'm not talking about --enable-gcc-opts) and I have to say that they just aren't worth it. You don't know which of them help the most in execution time, and you don't know which cost the most in compile time. (Hell, you don't even know which ones help *at all*; you could be running compiler passes that hurt run-time performance while eating up compile time.) You ran a genetic algorithm to guess which optimizations to run. That's fine to get an idea of what to try, but it's not sufficient to foist this pain on your users. Even on my Opteron server development is painful. So pull back to the old -O1 -fno-math-errno -fschedule-insns2 -fno-trapping-math -fno-strict- aliasing -fwrapv -fomit-frame-pointer by default; even offer a configure optimization to add - D___OPTIMIZE_SPACE to the compile line. You have a development model that does whole-program compilation by default; it just can't support the default compiler options chosen at configure time. Brad

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non blocking IO bug ?
by Adrien Pierard 07 Aoû '07

07 Aoû '07

Hi ! I'm having some trouble with simple sockets operations, and I'm not sure whether this is a bug, or whether I definitely misunderstood the documentation. Here is a sample code: ;; Create a server (define node-socket (open-tcp-server (list port-number: 8284 eol-encoding: 'cr-lf))) ;; Set it non blocking (input-port-timeout-set! node-socket 0) ;; read once. Should return EOF because no one tried to connect to the ;; server (define c (read node-socket)) ;; returns #t (eof-object? c) ;; Drink a coffee and read again. ;; It should return eof again for no one is connected (define d (read node-socket)) *** ERROR IN ##thread-deadlock-action! -- Deadlock detected Hum... Deadlock ? Should I do something specific after "failing" to read the socket to let some other expression to read it again ? Or is it a bug^Wundocumented feature in the non-blocking ports routines ? This happens as well on beta 22 as on beta 17. Does it happen at yours too on a mac/windows ? Do you use non blocking IO a different manner, and that works ? Regards, Adrien -- "I am not a Church numeral; I am a free variable!" (The Scheme Underground) For every complex problem, there is a solution that is simple, neat, and wrong.

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Installing Gambit-C on Windows using Visual C++ 7
by Kevin Brammer 04 Aoû '07

04 Aoû '07

Hi, I am new to using Gambit Scheme. I would like to be able to use Gambit Scheme with VC7. So I am trying to install Gambit Scheme 4.0 beta 22 on Windows XP. I have followed the instructions in the INSTALL file that came with the tarball and I was able to compile Gambit-C using VC7. I notices that six.exe didn't seem to be included. My main question is after I have the binaries compiled what is the proceedure for setting up the install directory? I originally tried manually copying the binaries into (as I compiled the system in C:\Temp\Gambit-C\): C:\Gambit-C\4.0b22\bin; I copied the lib file into C:\Gambit-C\4.0b22\lib; and I copied the include file into C:\Gambit-C\4.0b22\include. I then set up the following environment variables: INCLUDE=C:\Gambit-C\4.0b22\include; LIB=C:\Gambit-C\4.0b22\lib; PATH=C:\Gambit-C\4.0b22\bin I then wrote up the following file (hello.scm): (display "Hello World :)" ) At the command prompt I entered: C:\Temp> gsc -link hello.scm *** ERROR IN ##parameterize -- No such file or directory (current-directory "C:\\lib") I think the following error has to do with location Gambit-C was compiled at, but I'm not sure. As well if it is the error I'm not sure how to fix it. I would appreciate any help I could get on this and the above issues as I would really like to be able to use Gambit Scheme. - Kevin

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Gambit installers
by Marc Feeley 03 Aoû '07

03 Aoû '07

Does anyone have experience creating installers for Windows and MacOS X? What are the best free installers? Marc

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Gambit-list Août 2007