Re: [PATCH] canonicalize-lgpl: Canonicalize drive and dirsep too for MinGW.

[Bruno Haible]

Jan Nieuwenhuizen wrote:
> Do you see a cheap way to return the correct casing for the rest of the
> file name?

No. [1]

> I agree it's quite debatable and a bit arbitrary to correct drive name
> casing.  The reasons why opted to put in after all are:
> 
>    * it's cheap (I had the impression that if we found a cheap way to
>      return the canonical casing for the full file name, as opposed to
>      the unacceptably expensive scandir "solution", it might be
>      something that could be discussed),

Still, it's adding complexity. And it does not help solving the original
problem, namely that the processor that interprets
  #include "c:/foo.h"
  #include "C:/FOO.H"
  #include "C:\\FOO.H"
cannot just assume that different file names correspond to different
files on disk.

Why add complexity if solving the root problem requires a different
approach anyway?

Bruno

[1] https://lists.gnu.org/archive/html/bug-gnulib/2021-12/msg00069.html