Qfs C bindings: only force c++ linker on test-qfsc target, as the linker c++  by default for the lib itself.
Qfs C bindings: only force c++ linker on test-qfsc target, as the linker c++  by default for the lib itself.

thebigbrain/qfs,fengshao0907/qfs,fengshao0907/qfs,quantcast/qfs,thebigbrain/qfs,qnu/qfs,fengshao0907/qfs,quantcast/qfs,qnu/qfs,quantcast/qfs,fengshao0907/qfs,chanwit/qfs,thebigbrain/qfs,quantcast/qfs,chanwit/qfs,qnu/qfs,fengshao0907/qfs,qnu/qfs,qnu/qfs,thebigbrain/qfs,fengshao0907/qfs,fengshao0907/qfs,quantcast/qfs,chanwit/qfs,quantcast/qfs,quantcast/qfs,thebigbrain/qfs,chanwit/qfs,chanwit/qfs,qnu/qfs,qnu/qfs,chanwit/qfs,thebigbrain/qfs,thebigbrain/qfs,qnu/qfs,chanwit/qfs,fengshao0907/qfs,thebigbrain/qfs,quantcast/qfs,chanwit/qfs