nfs的时间问题，影响编译

[root@okk dpdk]# rm -rf x86_64-native-linuxapp-gcc/      
[root@okk dpdk]# A=`date +%s` ; B=`expr $A + 1`; echo $A ;date -s @"$B"  
1488945198 
Wed Mar  8 11:53:19 CST 2017 
[root@okk dpdk]# make config T=$RTE_TARGET O=$RTE_TARGET                
make[3]: Warning: File `/root/src/thirdparty/dpdk/dpdk-16.04/x86_64-native-linuxapp-gcc/.config' has modification time 0.74 s in the future 
make[4]: Warning: File `/root/src/thirdparty/dpdk/dpdk-16.04/x86_64-native-linuxapp-gcc/.depdirs' has modification time 0.66 s in the future 
make[5]: Warning: File `/root/src/thirdparty/dpdk/dpdk-16.04/x86_64-native-linuxapp-gcc/.config' has modification time 0.5 s in the future 
make[5]: warning:  Clock skew detected.  Your build may be incomplete. 
make[5]: Warning: File `/root/src/thirdparty/dpdk/dpdk-16.04/x86_64-native-linuxapp-gcc/.depdirs' has modification time 0.41 s in the future 
make[6]: Warning: File `/root/src/thirdparty/dpdk/dpdk-16.04/x86_64-native-linuxapp-gcc/.config' has modification time 0.24 s in the future 
make[6]: warning:  Clock skew detected.  Your build may be incomplete. 
make[6]: Warning: File `/root/src/thirdparty/dpdk/dpdk-16.04/x86_64-native-linuxapp-gcc/.depdirs' has modification time 0.15 s in the future 
make[6]: warning:  Clock skew detected.  Your build may be incomplete. 
make[5]: warning:  Clock skew detected.  Your build may be incomplete. 
make[4]: warning:  Clock skew detected.  Your build may be incomplete. 
make[4]: Warning: File `/root/src/thirdparty/dpdk/dpdk-16.04/x86_64-native-linuxapp-gcc/.depdirs' has modification time 0.65 s in the future 
make[5]: Warning: File `/root/src/thirdparty/dpdk/dpdk-16.04/x86_64-native-linuxapp-gcc/.depdirs' has modification time 0.51 s in the future 
make[5]: warning:  Clock skew detected.  Your build may be incomplete. 
make[5]: Warning: File `/root/src/thirdparty/dpdk/dpdk-16.04/x86_64-native-linuxapp-gcc/.depdirs' has modification time 0.66 s in the future 
make[5]: warning:  Clock skew detected.  Your build may be incomplete. 
make[4]: warning:  Clock skew detected.  Your build may be incomplete. 
make[4]: Warning: File `/root/src/thirdparty/dpdk/dpdk-16.04/x86_64-native-linuxapp-gcc/.depdirs' has modification time 0.66 s in the future 
make[4]: warning:  Clock skew detected.  Your build may be incomplete. 
make[3]: warning:  Clock skew detected.  Your build may be incomplete. 
Configuration done 
[root@okk dpdk]# A=`date +%s` ; B=`expr $A + 1`; echo $A ;date -s @"$B" 
1488945220 
Wed Mar  8 11:53:41 CST 2017