Use the compiled version when running benchmarks.

Unfortunately, this doesn't fix yash's /proc/self/exe problem.  But
busybox doesn't support it either, so I'm leaving it for now.

benchmarks/runtime.sh

@@ -24,7 +24,10 @@ EOF
}

readonly TAR_DIR=$PWD/_tmp/benchmarks/runtime 
readonly OSH=$PWD/bin/osh

# Use the compiled version.  Otherwise /proc/self/exe is the Python
# interpreter, which matters for yash's configure script!
readonly OSH=$PWD/_bin/osh

download() {
  files | xargs -n 1 -I {} --verbose -- \
@@ -99,4 +102,22 @@ qemu-old() {
  configure-and-copy ~/src/qemu-1.6.0 $OSH $out_dir
}

# This doesn't work for ash either, because it uses the busybox pattern.  It
# says "exe: applet not found".  I guess yash doesn't configure under ash!
self-exe() {
  set +o errexit
  dash <<EOF
/proc/self/exe -V
EOF
  echo

  _bin/osh <<EOF
/proc/self/exe -V
EOF

  _tmp/shells/ash <<EOF
/proc/self/exe -V
EOF
}

"$@"