Sebastien Launay authored Dec 03, 2015 and Howard Chu committed Dec 03, 2015

pthread_mutexattr_setrobust and pthread_mutex_consistent are provided since 2.12 not 2.10:
https://sourceware.org/git/?p=glibc.git;a=commit;h=402cd98775db1478f64c9b0dbe00664b89eb2773
https://sourceware.org/git/?p=glibc.git;a=commit;h=78ee21859939ff75ccf8bbe00499b0c462df2e2d