Roger, I thought this was a bug in gettext on Mac and fixed in newer versions (may not be released yet).
I fixed it with the following patch: --- po/Makefile.in.in.orig 2010-01-22 01:13:10.000000000 +0900 +++ po/Makefile.in.in 2010-01-22 01:13:44.000000000 +0900 @@ -56,7 +56,7 @@ XGETTEXT_yes = @XGETTEXT_015@ XGETTEXT = $(XGETTEXT_$(USE_MSGCTXT)) MSGMERGE = msgmerge -MSGMERGE_UPDATE = @MSGMERGE@ --update +MSGMERGE_UPDATE = @MSGMERGE@ --update --backup=off MSGINIT = msginit MSGCONV = msgconv MSGFILTER = msgfilter Hope it works, Koji