implications and importance of --prefix?? what about -static in GCC_EXTRA_CONFIG?

[David Haworth]

On Wed, Nov 05, 2003 at 08:00:42AM -0800, Dan Kegel wrote:
> David Haworth wrote:
> >I think I didn't explain myself very well. I'd like to build a
> >gcc that "knows" where its files are by looking at an arbitrary
> >(specified at build time) environment variable. I think this is
> >what Wind River do in the gcc that is deleivered with Tornado -
> >it appears to use WIND_BASE.
> >
> >The problem is that dirname(argv[0]) doesn't always work on
> >Unix - depends how the program is started.
> 
> Can you give me an example of when it fails?

argv[0] usually contains what you type at the command line.
So if your foo-gcc executable is in your path and the command
is "foo-gcc -c hello.c", argv[0] will contain "foo-gcc", so
dirname(argv[0]) will return "." according to my man page,
which isn't exactly what you want.

Dave

-- 
David Haworth       3SOFT GmbH, Frauenweiherstr. 14, 91058 Erlangen
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