From:	Jason Green <news AT jgreen4 DOT fsnet DOT co DOT uk>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: make
Date:	Fri, 28 Jan 2000 23:39:06 +0000
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Eli Zaretskii <eliz AT is DOT elta DOT co DOT il> wrote:

> Default wrote:
> > 
> > I am using make to compile embedded code for an HC16, so I am not using
> > DJGPP.  I am wondering if there is a way to check if a file exists from
> > within make.
> 
> If you really need that, you could use the function $(wildcard) and see if it
> returns an empty list.
> 
> > I want to delete the listing and absolute listing file
> > each time I recreate the object file.  I suppose that I could just do it
> > manually everytime or just automatically delete them within the target.
> 
> Why cannot you delete it unconditionally?  If it doesn't exist, deleting it
> won't do any harm, right?

Except that DEL says "File not found" if the file does not exist.  I
have not tried this in a makefile but in DOS you can type:

if exist filename del filename

For a portable makefile it may be better to use rm (from the package
fil316b.zip),  this won't complain if the file does not exist:

rm -f filename

Robert, Many projects have a 'clean' target which deletes all the
target files, are you looking for something _similar_ to that?

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