bug in cygwin_conv_to_posix_path() caused by period in win32 path

[Pavel Kudrna]

>
>
>     * /From/: "Dave Korn" <dave dot korn at artimi dot com>
>
>   They are legal, but there's no possible way to convert them to POSIX, which
> has no notion of a per-drive current directory.
>   
Ok, but Cygwin != POSIX :-)
Cygwin application has environment variable for each drive letter to
remember current drive. See example and run it from cmd.exe.
Pavel Kudrna

/* file: envp.c
gcc -o envp envp.c
*/
#include <stdio.h>

int main(int argc,char* argv[], char* envp[])
{
 char **p;
 for(p=envp;*p;p++) if (**p=='!') printf( "%s\n", *p );
 return 0;
}


C:\Program Files\cygwin\bin> cd L:\home\kudrna\test\z
C:\Program Files\cygwin\bin> L:envp

!C:=C:\Program Files\cygwin\bin
!EXITCODE=00000000
!L:=L:\home\kudrna\test\z
!S:=S:\
!T:=T:\
!U:=U:\

C:\Program Files\cygwin\bin>

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