On 28/06/12 10:17, Goswin von Brederlow wrote: > Say I want to have the build-essential for i386 installed on amd64. > I could install build-essential:i386, replacing gcc/g++:amd64 with > gcc/g++:i386. Wouldn't that give me everything needed to cross-compile > for i386?
For evolutions of the same CPU family (i386 vs amd64, powerpc vs powerpc64) this sort of works, but after you've installed gcc:i386, you can't compile 64-bit code any more (until you reinstall gcc:amd64). That means that in practice you use a chroot for 32-bit compilation, and if you're doing that, it might as well be a purely i386 chroot that doesn't use multiarch. For "real" cross-compiling - amd64 vs armel, say - you don't really want to be running an armel gcc binary that emits armel machine code (which is what gcc:armel is) under qemu emulation: it's technically possible, but your build will be rather slow. What you want is an amd64 gcc binary that emits armel machine code, which is what gcc-cross-armel:amd64 contains. S -- To UNSUBSCRIBE, email to debian-devel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4fec23f0.10...@debian.org