Re: Mac OS X Leopard and conftest.dSYM directories

[Ralf Wildenhues]

* Peter O'Gorman wrote on Sat, Nov 10, 2007 at 10:08:13PM CET:
> Ralf Wildenhues wrote:
> > 
> > What about separated compilation and linking?  Do the directories get
> > created upon
> >   cc -g -c foo.c
> >   cc -g -o foo foo.o
> 
> No, only when output is created directly from a source file (or when the
> user runs dsymutil). The compiler calls dsymutil in the case where it is
> going to delete the temporary object file (and with it the debugging
> information).
> 
> > say, these four examples:
> >   
> >   cc -g -o objsub/bar.o src/sub/foo.c

(there was a '-c' missing here)

> >   cc -g -o bin/foo sub/baz.o
> >   ar cru sub/libfoo.a sub2/bar.o sub3/baz.o
> >   cc [shlib_options] -o sub/foo.dylib bar/obj.o
> 
> In these cases the foo.dSYM directory structure is not created, out of
> curiosity, I tried:
> cc -g -o objsub/foo src/sub/foo.c
> and foo.dSYM was created in the output dir (objsub/foo.dSYM).

OK.

> The barf that is output during configure is mostly harmless, but is
> annoying. We just need to change the tests that do compilation without
> any intermediate objects to either use intermediate objects, or rm -rf
> conftest.* afterwards.

What happens if there is a conftest.dSYM file or directory lying around
from an earlier test.  Does that impact the test, so that we would also
need to remove the directory beforehand?

Thanks,
Ralf