autotools: clean up aclocal/ search path assignments

We need aclocal to look in two different $datadir/aclocal/ directories:
the native (eg, for pkg.m4 from pkgconfig) and the target (eg, for
alsa.m4 from alsa-lib).

aclocal doesn't directly support this pattern, currently we use
--system-acdir to specify the target directory and then add the native
directory to the user include list.

However, since automake 1.17 there is also an --aclocal-path option to
augument the search list.  As the relocated aclocal from automake-native
already knows the correct path for the native aclocal directory we can
use --aclocal-path to add the correct target aclocal directory.

For simplicity I don't bother only doing this in non-native builds as
this just adds the same path to the search twice.

This removes ACLOCALDIR and ACLOCALEXTRAPATH. Recipes using these to
add search paths should instead use EXTRA_AUTORECONF += "-I path".

(From OE-Core rev: 878e1517d4890b31332a506ce903d57e1d7dff87)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

0 files changed, 0 insertions, 0 deletions