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diff --git a/debian/uncrustify-trinity/uncrustify-trinity-0.74.0/src/backup.h b/debian/uncrustify-trinity/uncrustify-trinity-0.74.0/src/backup.h
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+/**
+ * @file backup.h
+ * Handles backing up file data.
+ *
+ * It works like this:
+ *
+ * 1. Read in the file data
+ *
+ * 2. Call backup_copy_file() to create a backup of the input, if needed
+ *
+ * 3. Do the uncrustify magic and write the output file
+ *
+ * 4. Call backup_create_md5_file()
+ *
+ * This will let you run uncrustify multiple times over the same file without
+ * losing the original file.  If you edit the file, then a new backup is made.
+ *
+ * @author  Ben Gardner
+ * @license GPL v2+
+ */
+#ifndef BACKUP_H_INCLUDED
+#define BACKUP_H_INCLUDED
+
+#define UNC_BACKUP_SUFFIX        ".unc-backup~"
+#define UNC_BACKUP_MD5_SUFFIX    ".unc-backup.md5~"
+
+
+/**
+ * @brief Check the backup-md5 file and copy the input file to a backup if needed.
+ *
+ * If there isn't a FILENAME+UNC_BACKUP_MD5_SUFFIX or the md5 over the data
+ * doesn't match what is in FILENAME+UNC_BACKUP_MD5_SUFFIX, then write the
+ * data to FILENAME+UNC_BACKUP_SUFFIX.
+ *
+ * Note that if this fails, we shouldn't overwrite to original file with the
+ * output.
+ *
+ * @param filename   The file that was read (full path)
+ * @param file_data  The file data
+ * @param file_len   The file length
+ *
+ * @retval EX_OK     successfully created backup file
+ * @retval EX_IOERR  could not create backup file
+ */
+int backup_copy_file(const char *filename, const std::vector<UINT8> &data);
+
+
+/**
+ * This calculates the MD5 over the file and writes the MD5 to
+ * FILENAME+UNC_BACKUP_MD5_SUFFIX.*
+ * This should be called after the file was written to disk.
+ * We really don't care if it fails, as the MD5 just prevents us from backing
+ * up a file that uncrustify created.
+ *
+ * This should be called after the file was written to disk.
+ * It will be read back and an md5 will be calculated over it.
+ *
+ * @param filename  The file that was written (full path)
+ */
+void backup_create_md5_file(const char *filename);
+
+
+#endif /* BACKUP_H_INCLUDED */