On 8/24/2010 4:53 PM, tpar...@etherstorm.net wrote: > I have a new (first) gentoo amd64 install, multilib, and have been > searching the docs, forums and google for information on how to handle > emerges for 32bit programs on the 64bit install. > > I have found some references to using -bin for 32bit programs (example: > "emerge wine-bin" to get the 32bit version or "emerge wine" to get the > 64 bit version) but I haven't been able to get that to work; emerge > wine-bin returns: 'emerge: there are no ebuilds to satisfy "wine-bin".' > Searches didn't turn up examples or explanations to help me find what I > am doing wrong.
Only a select number of packages in portage have binary editions that are separate from the main source package. Since you're building from source, very few programs actually need to be 32-bit apps on a 64-bit OS. I count a total of 77 "*-bin" packages in the entire portage tree, over half of which are closed-source games or Java applications. Wine is a special case, since portage will happily build a 64-bit version, but it's only mildly functional. In this case, the Wine package maintainer has set up the ebuild to build 32-bit by default, even on an amd64 profile. (If you specify USE=win64 you'll also get a 64-bit version of Wine but that's mostly for devs to play with.) So you should just be able to: emerge wine and let it go. > I also found references to making a chroot environment to use when > running the 32bit programs, but they all made it sound like a short step > from a dualboot - that I would not be able to use anything in my 64bit > environment while that was running. For example, having a 32bit program > running in windowed mode through wine while I have 64 bit work programs > running on the same desktop, or 32 bit firefox (for flash) with the rest > of the system 64bit. IMO setting up a 32-bit chroot should be a last resort. An x86_64 CPU and 64-bit OS should have no problem running 32-bit x86 binaries. If you need to run 32-bit applications that you cannot get built through portage, there is a whole list of packages (app-emulation/emul-linux-x86-*) that have prebuilt binaries for things like GTK, QT, SDL, etc. (The packages in portage, including Wine, will install the ones it needs automatically.) --Mike
