Index: .gitignore
===================================================================
diff -u -N -r4a481bbe77043e0bda2435c6d62a02700b3e46c5 -rebc7fabbd2d59f9a0f723ea480b5374cc393ec12
--- .gitignore	(.../.gitignore)	(revision 4a481bbe77043e0bda2435c6d62a02700b3e46c5)
+++ .gitignore	(.../.gitignore)	(revision ebc7fabbd2d59f9a0f723ea480b5374cc393ec12)
@@ -8,6 +8,7 @@
 *.opendb
 *.aps
 *.db
+*.bak
 src/ch/help/HTMLDefines.h
 src/ch/help/*/HTMLDefines.h
 src/ch/help/*/*.chm