Glibc 2.22 will be released in August. We should consider adding it to 1.9 as I already have recipes for master on a contrib branch. I plan to keep it uptodate until master is turned into 2.22 branch http://git.openembedded.org/openembedded-core-contrib/log/?h=kraj/master
its upsteam now.
Hello, Verified. 2.22 glibc recipe present. meta/recipes-core/glibc/glibc_2.22.bb