clayborg added a comment.

As long as both long and short options are still supported? Can you still type 
any of:

- --arch=x86_64
- --arch x86_64
- -arch=x86_64
- -arch x86_64
- -ax86_64
- -a x86_64

Are we able to track which options can be used with other options with the llvm 
solution? I didn't look too close. There were bits in the old option 
definitions which defined with options could be specified with which other 
options. The other thing that might throw people for a loop is if llvm doesn't 
support this style:

% lldb /bin/ls --arch=x86_64 -- -lAF

getopt_long allowed you to have arguments mixed in between the options so the 
arguments would have bee "/bin/ls" and "-lAF". Options would have been 
"--arch=x86_64".


http://reviews.llvm.org/D17724



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