Re: dependency tracking for .S assembler files

[Bob Friesenhahn]

On Fri, 24 Sep 2004, Martin Waitz wrote:

> hi :)
>
> On Thu, Sep 23, 2004 at 10:50:19AM -0500, Bob Friesenhahn wrote:
> > How well does this patch work for filesystems which do not preserve
> > case in file names?
>
> I guess the patch doesn't change the situation here.
> Mixed case filenames on such filesystems have always been a problem.

It seems that it would be good for Automake to provide a way to work 
around this problem.  One way would be to support file extensions 
which differ other than by case and recommend using that extension.

If Automake supports the .C extension to indicate C++ files, then that 
would seem to be a problem except that there are several other 
extensions which also work to indicate C++ files.

> This patch just introduces different handling of .s/.S files in
> automake. gcc is already treating those files differently so there
> shouldn't be a great difference with or without this patch.
>
> > Do we need to support filesystems which don't preserve case?
>
> I don't think we have to special-case them.
> Most things still work but if you want to store several files that
> only differ in case then you have to use a case sensitive filesystem.
> It's that simple ;).

As I recall, CVS also can have issues when two file names only differ 
by case.  It is best to avoid that scenario.

For assembler it seems unlikely that there would be both a .S file and 
a .s file, unless the .S file has been processed into a .s file.

Bob
======================================
Bob Friesenhahn
address@hidden
http://www.simplesystems.org/users/bfriesen