Christian, I have performed several tests. Today I have installed v8.1.0374.
c:\Programs\Vim\vim81>c:\programs\vim\vim81\gvim -u NONE :cd c:\aaa :e a.txt :vert diffsp b.txt And it works fine (double checked with v8.1.0366 which produces "Invalid diff format" error). But in v8.1.0374 I see no external window is opened, so probably some patch set vim to use internal diff program by default, which is great, love it. Additionally I did: :set diffopt-=internal and imediatelly got error: E959: Invalid diff format. Now I have closed gVim and renamed C:\CYGWIN to C:\_CYGWIN and repeated all above steps and no error as expected. Additional test with dir still named C:\_CYGWIN name c:\Programs\Vim\vim81>c:\programs\vim\vim81\gvim -u NONE :set diffopt-=internal :cd c:\aaa :e a.txt :vert diffsp b.txt Above did not produce any error as expected (because of name C:\_CYGWIN), but interesting there was also no external diff window (unexpected). Get some info: :verbose set diffopt? diffexpr? diffopt=filler diffexpr= :20verbose diffupdate Calling shell to execute: "diff -a --binary C:\Users\igor\AppData\Local\Temp\VIo 3644.tmp C:\Users\igor\AppData\Local\Temp\VIn3645.tmp >C:\Users\igor\AppData\Loc al\Temp\VId3656.tmp 2>&1" Calling shell to execute: "diff -a --binary C:\Users\igor\AppData\Local\Temp\VIo 3644.tmp C:\Users\igor\AppData\Local\Temp\VIn3645.tmp >C:\Users\igor\AppData\Loc al\Temp\VId3656.tmp 2>&1" Christian, if you can't reproduce a problem, then there got to be something at my place. As described yesterday, I really love internal diff, because it is just much faster to start and no external window opened which is more elegant/beautiful. If you are willing to dig more into this problem I am willing to assistm but please don't do it just for me, because I don't need external diff program. -- -- You received this message from the "vim_dev" maillist. Do not top-post! Type your reply below the text you are replying to. For more information, visit http://www.vim.org/maillist.php --- You received this message because you are subscribed to the Google Groups "vim_dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
