[OE-core] [dylan, master][PATCH] autotools.bbclass: Fix race with sed-native

[Enrico Scholz]

Richard Purdie
<richard.purdie-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r at public.gmane.org>
writes:

> The list of things we assume are ok is relatively small and we look at
> new issues on a case by case basis. I think sed is well enough
> established and well enough behaved to be something we can rely on. In
> general we don't rely on much. Do you have any other specific things you
> worry about? 

ccache... it causes big problems when CC='ccache real-gcc' is set and
ccache-native gets rebuilt in parallel.  A customer had problems when
building apr-utils (libtool reported missing '--tag=cc' option) which
are very likely related to a no-ccache -> ccache-available situation.

It is very difficult to recover from such things because CCACHE is in
BB_HASHBASE_WHITELIST.



Enrico