For some strange reason, there are five hex 09 bytes in stunnel-4.26/src/Makefile.am. This broke my Cygwin build: I remove the Windows-only stuff from this file for Cygwin, and diff captured the 0x09 characters that got removed, but then when I later tried to apply the patch, patch choked on them.
It seems that each of these bytes should really be 0x0A. Strange.
Are you really sure you're talking exactly about 0x09 bytes? Those are tabs, aren't they?
Er... ugh. Sorry. Well, something was causing patch to choke on my diffs... then it seems I went temporarily insane.
Nevermind. Andrew.