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: ' Usleep ' is not declared in this scopeUsleep (3000);^Cmakefiles/orb_slam2.dir/build.make:494:recipe for Target ' CMAKEFILES/ORB_SLAM2.DIR/SRC/VIEWER.CC.O ' failedMAKE[2]: * * * [CMAKEFILES/ORB_SLAM2.DIR/SRC/VIEWER.CC.O] Error 1Cmakefiles/makefile2:178:recipe for Target ' Cmakefiles/orb_slam2.dir/all ' failedMAKE[1]: * * * [Cmakefiles/orb_slam2.dir/all] Error 2Makefile:83:recipe for target ' all ' failedMake: * * * [ALL] Error 2Solution:Add include at the beginning of the source file#include

#! /bin/sh# chkconfig:2345 # Description:jenkins .... # This script would be executed *after* all the other init script S. # You can put your own initialization stuff in here if you don ' t # want to do the full Sys V style init stuff. #prefix =/home/lanmps/jenkins#nohup $prefix/start_jenkins.sh >> $prefix/jenkins.log 2>1 Here comes the wind. jenkins_root=/home/lanmps/jenkinsjenkinsfilename=jenkins.war# Stop Method stops () { echo "stoping $ Jenkinsfilename "Ps-ef|grep $JENKINSFILENAME |aw