mysql plugin not compiling from source

[rahulvishwakarma]

i have qt 5.2.1 in centos6.6 (32 bit) linux, in vmware machine. mysql in another VM. mysql is connection from client

to server is successful. But when i want to build plugin for mysql database connectivity by command :

# /opt/Qt5.2.1/5.2.1/gcc/bin/qmake "INCLUDEPATH+=/usr/include" "LIBS+=-L/usr/lib/mysql -lmysqlclient_r" mysql.pro
# make

# /opt/Qt5.2.1/5.2.1/gcc/bin/qmake "INCLUDEPATH+=/usr/include" "LIBS+=-L/usr/lib/mysql -lmysqlclient_r" mysql.pro
# make

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this gives following error :

/export/home/pb2/build/sb_0-14135570-1421675634.15/rpm/BUILD/mysql-5.6.23/mysql-5.6.23/mysys/my_getsystime.c:44: undefined 
reference to `clock_gettime'
collect2: error: ld returned 1 exit status
make: *** [../../../../plugins/sqldrivers/libqsqlmysql.so] Error 1

/export/home/pb2/build/sb_0-14135570-1421675634.15/rpm/BUILD/mysql-5.6.23/mysql-5.6.23/mysys/my_getsystime.c:44: undefined 
reference to `clock_gettime'
collect2: error: ld returned 1 exit status
make: *** [../../../../plugins/sqldrivers/libqsqlmysql.so] Error 1

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how to solvw this