I think the best would be to restrict the package to amd64/i386/x32 and add a preinst script that checks for sse2 support (see below).
The only thing I wonder is whether there are legitimate cases wheer one should be able to install the package non-functional. Best, Gert >>>> #/bin/sh set -e grep sse2 /dev/cpuinfo 2>&1 >/dev/null if "x$?" = "x1" ]; then echo "Your CPU doesn't have SSE2 support, but this package requires" echo "it, aborting installation." exit 1 fi exit 0 <<<<