Hey Greg, On Tue 03 Apr 2012 02:32:39 AM CEST, Greg Troxel wrote:
> > I was wondering if it's possible to have guile 1.8 and guile 2.0 > installed on the same system? I remember reading in the documentation > that it is, but I haven't been able to pull it off yet, except by using > different --prefix values for each. > > pkgsrc (a packaging system originally for NetBSD, but also supports > other BSDs, Linux, *Solaris, and others) doesn't have guile 2 yet (my > fault :-) but has 1.6 and 1.8. 1.8 is installed normally > (--prefix=/usr/pkg, named guile) and guile1.6 is installed > --prefix=/usr/pkg/guile/1.6. So that's a data point about others' > approach to your problem. Yeah I got this far with guile 2.0 as well. > I don't know enough about the autotools to know what to do with > guile.m4. Does automake/autoconf expect the file name to match > something, or does it only look at the definitions inside, in which case > it could simply be moved. > > You only need that to run autoconf on programs that depend on guile, and > either should be ok. So you could patch it out of the 2.0 build. > But having a separate prefix seems easiest. I understand, I know just enough about autoconf to know that }:) But if I write something that depends on guile, would I have to change anything in my scripts to use guile 2.0 if I've installed the file as, for example, guile2.m4? > What's wrong (or actually problematic) about using /usr/guile2 as the > prefix for guile 2.0, and putting it in your path and/or passing that > for building other things? There's nothing really wrong, I just think it's a little unnecessary. Since guile seems to be able to live next to other versions of itself for about 90%. All the library files and script files are already in a special directory, only some of the other files (info,m4,guile-tools) seem to conflict. Anyway, it's not really a problem, it's pretty much just lazyness and curiosity. I would like to use software for both versions with minimal patching and I would like to be able to write software for guile 2 without using all kinds of configuration specific to my case. I should probably just try it with a renamed guile.m4, I was actually hoping for some recommendations or warnings or stories about how other people handle it, I don't want to do something that goes completely against all recommendations. Thanks for your answer! Cheers, Tom
