[Buildroot] [PATCH 1/3] Makefile: use absolute paths to BR2_EXTERNAL

[Yann E. MORIN <yann.morin.1998@free.fr>]

Arnoud, All,

On 2014-02-02 12:01 +0100, Arnout Vandecappelle spake thusly:
> On 02/02/14 11:23, Yann E. MORIN wrote:
> >Arnoud, All,
> >
> >On 2014-01-27 18:26 +0100, Arnout Vandecappelle spake thusly:
> >>On 22/01/14 21:59, Yann E. MORIN wrote:
> >>>+  _BR2_EXTERNAL = $(shell cd $(BR2_EXTERNAL) >/dev/null 2>&1 && pwd)
> >>>+  ifeq ($(_BR2_EXTERNAL),)
> >>>+    ifeq ($(patsubst /%,/,$(BR2_EXTERNAL)),/)
> >>>+      $(error BR2_EXTERNAL='$(BR2_EXTERNAL)' does not exist)
> >>>+    else
> >>>+      $(error BR2_EXTERNAL='$(BR2_EXTERNAL)' does not exist, relatively to $(TOPDIR))
> >>
> >>  I don't think the limited explanation "relatively to $(TOPDIR)" warrants
> >>the additional complexity of patsubsting stuff.
> >
> >Well, we want to tell the user why w edid not find his BR2_EXTERNAL.
> >And since it can be tricky to understand that a relative path is not
> >found, we do want to highlight that fact in the error message.
> 
>  For me it would be sufficient to make it "relative to the buildroot
> directory" for both the absolute and relative case.

OK, I get it. OK for me.

Thanks!

Regards,
Yann E. MORIN.

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