This problem came up for Libidn but it seems to be a problem with the update-copyright self check, it fails under Cygwin.
> * Cygwin 1.7.9 > > Fails already in the gnulib tests: > > 1 of 36 tests failed > > --- - 2011-11-23 01:13:33.194375000 +0100 > +++ update-copyright.test-ex-stderr 2011-11-23 01:13:33.099750000 +0100 > @@ -1,2 +1,4 @@ > update-copyright.test-ex.4: warning: copyright statement not found > +update-copyright.test-ex.4.bak: warning: copyright statement not found > update-copyright.test-ex.5: warning: copyright statement not found > +update-copyright.test-ex.5.bak: warning: copyright statement not found > FAIL: test-update-copyright.sh Any ideas where the *.bak files come from? I can't find anything in test-update-copyright.sh that creates them, so I suspect that Cygwin/Windows somehow creates backup files for some reason? Is there any way to disable that? Any other ideas? Meanwhile, I'm disabling this self-test in Libidn since it doesn't affect the stability of the rest of the package. Generally, this self-tests seems to be in a somewhat different class than usual self-tests, more like a maintainer-check thing? /Simon