cpan.bbclass: make RPATH fix more general
Extract a general version of RPATH fix for libxml-parser-perl_2.44.bb
from
292471701 libxml-parser-perl: fix "...contains bad RPATH"
into cpan.bbclass to catch most errors reported by Khem Raj via
http://errors.yoctoproject.org/Errors/Build/66538/
Genrally, Perl 5 toolchain deals with cross-compile sysroots
as if a dependency is installed at an exostic place on a server.
This issue needs to be addressed wider into the community.
Signed-off-by: Jens Rehsack <sno@netbsd.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
