I could find no changes to fcntl.h in the patch file that was posted to the mailing list, was it's inclusion in the list of changed files a typo? Also attached is some code I wrote to add better stty support to B17.1, it will have to be changed to integrate with your stuff, but I thought you might like to look at it anyway. -------------- next part -------------- A non-text attachment was scrubbed... Name: stty.dif Type: text/x-diff Size: 4077 bytes Desc: not available URL: <http://cygwin.com/pipermail/cygwin/attachments/19970608/4e2889b2/attachment.bin>