optional_depends  openssl          '' ''  'encryption support' &&
optional_depends  "progsreiserfs"  "" ""  "to list files from ReiserFS partition"  &&
optional_depends  "ntfsprogs"      "" ""  "to list files from NTFS partition"      &&
optional_depends  "jpeg"           "" ""  "to improved JPEG recovery rate"         &&
optional_depends  "libewf"         "" ""  "to support Expert Witness Compression Format (EWF)"
