glibc-package: fix locale cleanup logic
If ${libdir} is a subdirectory of ${prefix}/lib, e.g. /usr/lib/aarch64-linux, the cleanup logic will delete libc.so.
This bit of code was added in 2012 (git show
b744f4cc) to remove /usr/lib/locale, this commit makes it remove that directory recursively and afterwards remove /usr/lib, erroring out if it's non-empty.
Tested with a plain (/usr/lib), a 64-bit (/usr/lib64) and a multiarch (/usr/lib/aarch64-linux) build. I strongly suspect this whole bit of cleanup isn't needed anymore, but my testing is too limited to be certain.
Signed-off-by: Koen Kooi <koen.kooi@linaro.org>
Signed-off-by: Ross Burton <ross.burton@intel.com>
