C: vs /cygdrive/c and git

[Bill Hoffman <bill dot hoffman at kitware dot com>]

Can someone explain why if I use c:/some/path as an argument to git 
clone, it fails.  But if I use /cygdrive/c/some/path it works.

Here is an example:

GIT_TRACE=1 git clone c:/Users/hoffman/Work/My\ 
Builds/CMake-gmake/Tests/ExternalProject/LocalRepositories/GIT foobar
trace: built-in: git 'clone' 'c:/Users/hoffman/Work/My 
Builds/CMake-gmake/Tests/ExternalProject/LocalRepositories/GIT' 'foobar'
Initialized empty Git repository in /cygdrive/c/Users/hoffman/Work/My 
Builds/CMake-gmake/f/foobar/.git/
fatal: failed to open '/cygdrive/c/Users/hoffman/Work/My 
Builds/CMake-gmake/f/c:/Users/hoffman/Work/My 
Builds/CMake-gmake/Tests/ExternalProject/LocalRepositories/GIT/objects': 
No such file or directory

Somehow, the path has been duplicated one with /cygdrive/c and one 
without and the two of the smashed together???



This works:
$ GIT_TRACE=1 git clone /cygdrive/c/Users/hoffman/Work/My\ 
Builds/CMake-gmake/Tests/ExternalProject/LocalRepositories/GIT foobar
trace: built-in: git 'clone' '/cygdrive/c/Users/hoffman/Work/My 
Builds/CMake-gmake/Tests/ExternalProject/LocalRepositories/GIT' 'foobar'
Initialized empty Git repository in /cygdrive/c/Users/hoffman/Work/My 
Builds/CMake-gmake/f/foobar/.git/
trace: run_command: 'git-upload-pack 
'\''/cygdrive/c/Users/hoffman/Work/My 
Builds/CMake-gmake/Tests/ExternalProject/LocalRepositories/GIT'\'''
trace: exec: 'sh' '-c' 'git-upload-pack 
'\''/cygdrive/c/Users/hoffman/Work/My 
Builds/CMake-gmake/Tests/ExternalProject/LocalRepositories/GIT'\''' 
'git-upload-pack '\''/cygdrive/c/Users/hoffman/Work/My 
Builds/CMake-gmake/Tests/ExternalProject/LocalRepositories/GIT'\'''


Any ideas?

Thanks.

-Bill

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