updated Makefile.in

Author: HariSekhon

Diff for: Makefile.in

@@ -863,3 +863,8 @@ repos:
 		printf '\n## More Core Repos\n\n<!-- OTHER_REPOS_START -->\n\n<!-- OTHER_REPOS_END -->\n' >> README.md; \
 	fi; \
 	markdown_replace_repos.sh
+
+mac-exclude-backups:
+	for path in $(MAC_TIME_MACHINE_BACKUP_EXCLUDE_PATHS); do \
+		sudo tmutil addexclusion -p "$path"
+	done