[Cherry-pick] Up cxx11 check to cxx14#34034

Merged

lanxianghit merged 1 commit intoPaddlePaddle:release/2.1from chenwhql:release2.1/up_cxx11_to_cxx14

Jul 9, 2021

+2-2

Commits on Jul 8, 2021

up cxx11 to cxx14 (PaddlePaddle#34015 )
chenwhql
committed