diff -Nru comm-1.9.2.orig/mail/installer/Makefile.in comm-1.9.2/mail/installer/Makefile.in
--- comm-1.9.2.orig/mail/installer/Makefile.in	2010-04-30 22:41:37.000000000 +0300
+++ comm-1.9.2/mail/installer/Makefile.in	2010-05-05 20:20:29.551660469 +0300
@@ -42,6 +42,8 @@
 
 include $(DEPTH)/config/autoconf.mk
 
+MOZ_APP_VERSION="3.1"
+
 include $(topsrcdir)/config/rules.mk
 
 MOZ_PKG_REMOVALS = $(srcdir)/removed-files.in