Is there a convenient switch to make GCC bootstrap on Debian/amd64 without patching the build infrastructure? Apparently, GCC tries to build 32-bit variants of all libraries (using -m32), but the new compiler uses the 64-bit libc instead of the 32-bit libc, hence building them fails.
I don't need the 32-bit libraries, so disabling their compilation would be fine. --enable-targets at configure time might do the trick, but I don't know what arguments are accepted.
