[Buildroot] [PATCH 7/7] arc: Make sure that libgcc doesn't get included when it doesn't exist yet

[Thomas Petazzoni <thomas.petazzoni@free-electrons.com>]

Dear Mischa Jonker,

On Mon, 22 Apr 2013 13:37:31 +0200, Mischa Jonker wrote:
> For ARC, libgcc is always included, even when -nostdlib is given. This is
> related to some small pieces of code that are not always generated by the
> compiler; a call to libgcc is used in those cases instead.
> 
> During the initial stages of building the toolchain, this is a problem, as
> libgcc does not exist yet. The ARC compiler supports -really-nostdlib to
> override the default behavior.
> 
> Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
> ---
>  toolchain/uClibc/uclibc.mk |   10 ++++++++--
>  1 files changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/toolchain/uClibc/uclibc.mk b/toolchain/uClibc/uclibc.mk
> index 1629e76..14083a9 100644
> --- a/toolchain/uClibc/uclibc.mk
> +++ b/toolchain/uClibc/uclibc.mk
> @@ -404,6 +404,12 @@ ifeq ($(BR2_CCACHE),y)
>  $(UCLIBC_DIR)/.config: | host-ccache
>  endif
>  
> +ifeq ($(BR2_arc)$(BR2_arceb),)
> +REALLY_NOSTDLIB=
> +else
> +REALLY_NOSTDLIB=-really-nostdlib
> +endif

Could you copy/paste parts of your commit log as a comment above this
piece of code? This would make it easier to understand. Also, you could
write it this way:

ifeq ($(BR2_arc)$(BR2_arceb),y)
REALLY_NOSTDLIB=-really-nostdlib
endif

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com