win32: try to make working directory names consistent

Standardise the path names used for the current working directory by:

- resolving with realpath(3);
- making the drive name or host name uppercase.

The first only really works for physical drives; results for mapped
drives are patchy.

The standardisation is applied in two places:

- at the end of updatepwd() in ash;
- when a symbolic link is resolved in mingw_chdir().

1 files changed, 1 insertions, 0 deletions

diff --git a/include/mingw.h b/include/mingw.h
index 1ec5292d8..07f9857e9 100644
--- a/include/mingw.h
+++ b/include/mingw.h
@@ -530,3 +530,4 @@ char *get_system_drive(void);
 int chdir_system_drive(void);
 char *xabsolute_path(char *path);
 char *get_drive_cwd(const char *path, char *buffer, int size);
+void fix_path_case(char *path);