automake: set test-driver path relative to top_builddir
automake offers auxiliary tools and is capable to install and prepare the setup for those.
test-driver, a log driver used by parallel testsuite harness in ptests, is one of those tools.
By default it looks that automake prepare environment for testing relative $top_srcdir.
But in Yocto following changed:
- build folder was separated
- $top_srcdir is not anymore defined as relative path, now can be relative or absolute
So now in Yocto the Makefile from src/tests contains absolute path of $top_srcdir for test-driver
which is an unexisting path at runtime.
We need to have relative path for test-driver in Makefile to work on target. $top_builddir
can guarantee this path.
Originally submitted by Adrian Calianu <adrian.calianu@enea.com>
Signed-off-by: Martin Borg <martin.borg@enea.com> Signed-off-by: Ross Burton <ross.burton@intel.com>