Avoid invalid LTO mode errors

[Diego Novillo]

On Sun, Dec 5, 2010 at 08:30, Jan Hubicka <hubicka@ucw.cz> wrote:
> Hi,
> compiling object produced with -flto with -fuse-linker-plugin only currently leads to
> invalid LTO mode fatal error. This is because linker claims the files, but no LTO mode
> is specified.
> While for fat objects (i.e. all we support at the moment) we probably should modify linker
> plugin to not claim anything (I will do that incrementally), we really want to default
> to WHOPR in lto-wraper: it is executed only when LTO is needed. This will be needed once we
> support slim files.
>
> Bootstrapped/regtested x86_64, linux, OK?
>
>        * lto-wrapper.c (run_gcc): Default to WHOPR mode when none is specified
>        at the command line.

OK.


Diego.