sources:
  upx-3.95.tar.gz: a716f0311d11a4e727589f3435b27787b929feae
  upx-4.2.4-src.tar.xz: 94232affd0ab7b616f2eebf0c005b90abe41ed5b
  upx-lzma-sdk-3.95.tar.gz: c6a754f3c578d948cd5e7a5d5751e4589566f43d