Cygwin programs doesn't support non-ASCII filenames

[Lenik]

(My system locale is zh_CN)

1, test path
    >>> set LANG=& cygpath -am .
    C:/Profiles/Shecti/桌面
    >>> set LANG=zh_CN.GBK& cygpath -am .
    C:/Profiles/Shecti/桌面

    >>> set LANG=C& cygpath -am .
    C:/Profiles/Shecti/×ÀÃæ

2, the `test' utility
    >>> set LANG=& bash -c "D=$(cygpath -am .); if [ -d $D ]; then echo 
ok $D; else echo fail $D; fi"
    fail C:/Profiles/Shecti/桌面

    >>> set LANG=zh_CN.GB2312& bash -c "D=$(cygpath -am .); if [ -d $D 
]; then echo ok $D; else echo fail $D; fi"
    fail C:/Profiles/Shecti/桌面

    >>> set LANG=zh_CN.GBK& bash -c "D=$(cygpath -am .); if [ -d $D ]; 
then echo ok $D; else echo fail $D; fi"
    ok C:/Profiles/Shecti/桌面

    >>> set LANG=C& bash -c "D=$(cygpath -am .); if [ -d $D ]; then 
echo ok $D;else echo fail $D; fi"
    fail C:/Profiles/Shecti/×ÀÃæ

3, the `cp' utility
    >>> set LANG=& bash -c "F=$(cygpath -am .)/a.zip; if cp -f $F xyz; 
then echo ok $D; else echo fail $D; fi"
    cp: cannot stat `C:/Profiles/Shecti/桌面/a.zip': No such file or 
directory
    fail

    >>> set LANG=zh_CN.GB2312& bash -c "F=$(cygpath -am .)/a.zip; if cp 
-f $F xyz; then echo ok $D; else echo fail $D; fi"
    cp: cannot stat `C:/Profiles/Shecti/桌面/a.zip': No such file or 
directory
    fail

    >>> set LANG=zh_CN.GBK& bash -c "F=$(cygpath -am .)/a.zip; if cp -f 
$F xyz; then echo ok $D; else echo fail $D; fi"
    ok

    >>> set LANG=C& bash -c "F=$(cygpath -am .)/a.zip; if cp -f $F xyz; 
then echo ok $D; else echo fail $D; fi"
    cp: cannot stat `C:/Profiles/Shecti/×ÀÃæ/a.zip': No such file or 
directory
    fail

4, the `d' utility
    >>> set LANG=& bash -c "D=$(cygpath -am .); if d $D; then echo ok 
$D; else echo fail $D; fi"
    /mnt/c/Profiles/Shecti/▒桌▒面/C:/Profiles/Shecti/桌面 doesn't exist!
    fail C:/Profiles/Shecti/桌面

    >>> set LANG=zh_CN.GB2312& bash -c "D=$(cygpath -am .); if d $D; 
then echo ok $D; else echo fail $D; fi"
    /mnt/c/Profiles/Shecti/▒桌▒面/C:/Profiles/Shecti/桌面 doesn't exist!
    fail C:/Profiles/Shecti/桌面

    >>> set LANG=zh_CN.GBK& bash -c "D=$(cygpath -am .); if d $D; then 
echo ok $D; else echo fail $D; fi"
    /mnt/c/Profiles/Shecti/▒桌▒面/C:/Profiles/Shecti/桌面 doesn't exist!
    fail C:/Profiles/Shecti/桌面

    >>> set LANG=C& bash -c "D=$(cygpath -am .); if d $D; then echo ok 
$D; elseecho fail $D; fi"
    /mnt/c/Profiles/Shecti/▒桌▒面/C:/Profiles/Shecti/×ÀÃæ doesn't exist!
    fail C:/Profiles/Shecti/×ÀÃæ

Problems:
(1)
    Executables `test', `cp' (and rm, cat, stat, find, etc. seems like 
all of binutils) supports locale settings,

    while `d' (and gcc, zip, unzip, gzip, gunzip, jar, vi, etc. not of 
binutils) are not.

(2)
    Even programs of binutils may not support locale settings correctly,
    The GB2312 charset is a subset of GBK charset, and the characters ` 
桌面' is included in GB2312 charset. So in this example, GB2312 SHOULD WORK.


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