[U-Boot] [PATCH] config.mk: enable -fstack-usage only when it is desired

[Masahiro Yamada]

Hello Jeroen

> 
> I tried to google this a bit, one thing I found was
> http://sourceware.org/bugzilla/show_bug.cgi?id=5210, but I fail
> to (easily) find a reliable gcc reference. Perhaps we should
> file a bug? -Werror doesn't work with /dev/null when
> -fstack-usage is not supported...

I might be a bug but I cannot say with confident.
Anyway, we need to do something
with the current gcc behavior.


> I cannot comment on your concern regarding Kbuild, since I
> am unaware of its internals. I just suggested above since
> it would be a cleaner approach (if it worked...).

I posted
version2 : config.mk: disable -fstack-usage for blackfin and m68k
and
version3 : config.mk: fix -fstack-usage support test


I think the latter is close to your idea and
I believe it's better.


Best Regards
Masahiro Yamada