message: guix: Create windeploy inside distsrc-*
  ./windeploy is a "working directory", and therefore belongs inside
  distsrc-*. Many people have noticed their Guix builds failing after
  hours simply because they did not remove windeploy (but did remove the
  distsrc-* directories).
diff: @@ -394,15 +394,14 @@ mkdir -p "$DISTSRC"
  || ( rm -f "${OUTDIR}/${DISTNAME}-${HOST//x86_64-apple-darwin18/osx64}.tar.gz" && exit 1 )
  ;;
  esac
  - )
  -)
  + ) # $DISTSRC/installed
  case "$HOST" in
  *mingw*)
  cp -rf --target-directory=. contrib/windeploy
  (
  cd ./windeploy
  - mkdir unsigned
  + mkdir -p unsigned
  cp --target-directory=unsigned/ "${OUTDIR}/${DISTNAME}-win64-setup-unsigned.exe"
  find . -print0 \
  | sort --zero-terminated \
  @@ -412,3 +411,4 @@ case "$HOST" in
  )
  ;;
  esac
  +) # $DISTSRC
  