[Buildroot] [RFC/PATCH] fs/common.mk: Fix wrong double dollar usage

[Arnout Vandecappelle <arnout@mind.be>]

On 03/12/13 12:28, Thomas De Schampheleire wrote:
> The main problem is that the 'ifneq' never evaluates to false, as you
> mentioned, even if its contents are 'empty'. They are never really
> empty, because of this line:
>
> ROOTFS_DEVICE_TABLES = $(call qstrip,$(BR2_ROOTFS_DEVICE_TABLE)) \
>          $(call qstrip,$(BR2_ROOTFS_STATIC_DEVICE_TABLE))
>
> Because it is a concatenation of two strings separated by spaces,
> there will always be a space in the final variable, which means it's
> not empty. We need to strip it.
> The following change fixes your problem, it runs the qstrip on the
> overal combination of the variables, causing the space to be removed
> if it's the only thing left.

  Alternatively, you could remove the space before the backslash. But I 
think I prefer the overall qstrip.

  Regards,
  Arnout


-- 
Arnout Vandecappelle                          arnout at mind be
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