> Date: Sat, 11 Apr 2020 14:12:13 -0700 > From: Chas Leichner <c...@chas.io> > > Sorry if this isn't an appropriate place to ask this question, I asked > about this on #scheme and they directed me here. > > I'm working on reading Functional Differential Geometry and ran into a > problem installing scmutils. I'm using a mac (Mojave 10.14.5 with MIT > Scheme 10.1.10) which the scmutils docs say is supported, but get an > architecture not supported error when I try to run it. > [...] > File has: compiled-code interface 3; architecture 14. > Expected: compiled-code interface 3; architecture 13.
It appears you are using the svm1 version of MIT Scheme (compiled-code architecture 13), which is based on a byte code interpreter, rather than the x86-64 version of MIT Scheme that gjs used to create the mechanics.com band (compiled-code architecture 14), which uses native x86-64 machine code. You correctly ascertained that one cannot use another's bands. So either you'll need to use the x86-64 version of MIT Scheme, which is probably what you want anyway; or if for some reason you particularly want to use svm1, you'll need to build scmutils from source -- maybe ask gjs how to do that since I don't know offhand. How did you install MIT Scheme? From https://www.gnu.org/software/mit-scheme/ you'll need either the `Unix binary' or `macOS binary' distribution; the `Portable SVM' one will not work with the band gjs provided. If you installed from Homebrew or MacPorts or something, they should be changed to use the x86-64 version of MIT Scheme; there's no advantage to the svm1 one.
