Re: Confusion on 'specs' file in m68k-aout cross compiler build...

[Brendan J Simon <Brendan dot Simon at ctam dot com dot au>]

Ryan Kirkpatrick wrote:

> > I'm not an expert on the internals of the gcc build system, but as far as I know
> > the native compiler should not be using the specs file in the current directory.
> > It should be using the specs file in usr/lib/... (eg.
> > /usr/lib/gcc-lib/i386-redhat-linux/2.7.2.3/specs).  "gcc -v" will tell you which
> > specs file is being used.  gcc only overrides the default if the -specs option is
> > given on the command line.
>
>         Hmm... That is very interesting, as on my Debian Potato (2.2)
> machine, this what gcc is saying:
>
> $ rm ./specs
> $ gcc -v
> Reading specs from /usr/lib/gcc-lib/i386-linux/2.95.2/specs
> gcc version 2.95.2 20000220 (Debian GNU/Linux)
> $ touch specs
> $ gcc -v
> Reading specs from ./specs
> gcc version 2.95.2 20000220 (Debian GNU/Linux)
>
> Now, if I repeat the experiment on on a Debian Slink (2.1) machine, the
> results are different:
>
> $ rm ./specs
> $ gcc -v
> Reading specs from /usr/lib/gcc-lib/i486-linux/2.7.2.3/specs
> gcc version 2.7.2.3
> $ touch specs
> $ gcc -v
> Reading specs from /usr/lib/gcc-lib/i486-linux/2.7.2.3/specs
> gcc version 2.7.2.3
>
> I think I have found a bug in the new gcc in Debian Potato! I looked at
> the Debian bugs list, and there is not mention of this problem. Looked at
> the changelog for the same package, and still no mention of this issue.
> Not even anything in the debian-devel mailing list archives. I will post
> to the debian-devel and find out what is going on. Thanks for the pointer.

This definately looks weird to me.  Why would "touch" cause gcc to look in a different
place for the specs file ?  What directory were you in when you ran "touch" ?  If the
file does not exist then touch will create an empty file.  "touch -c" will touch the
file if it exists but will not create a new file if it does not exist.

Brendan Simon.



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