fixed bizarre compilation problem of MLS on gcc 4.7.2
fixed bizarre compilation problem of MLS on gcc 4.7.2

jeppewalther/kinfu_segmentation,srbhprajapati/pcl,closerbibi/pcl,zavataafnan/pcl-truck,shangwuhencc/pcl,zhangxaochen/pcl,closerbibi/pcl,zavataafnan/pcl-truck,msalvato/pcl_kinfu_highres,pkuhto/pcl,ipa-rmb/pcl,mikhail-matrosov/pcl,shivmalhotra/pcl,sbec/pcl,mschoeler/pcl,damienjadeduff/pcl,shangwuhencc/pcl,v4hn/pcl,shyamalschandra/pcl,simonleonard/pcl,RufaelDev/pcc-mp3dg,krips89/pcl_newfeatures,kanster/pcl,raydtang/pcl,nh2/pcl,lydhr/pcl,DaikiMaekawa/pcl,MMiknis/pcl,shyamalschandra/pcl,damienjadeduff/pcl,Tabjones/pcl,chatchavan/pcl,drmateo/pcl,shangwuhencc/pcl,closerbibi/pcl,raydtang/pcl,simonleonard/pcl,3dtof/pcl,starius/pcl,ResByte/pcl,chenxingzhe/pcl,starius/pcl,srbhprajapati/pcl,lydhr/pcl,jakobwilm/pcl,lebronzhang/pcl,shivmalhotra/pcl,chenxingzhe/pcl,soulsheng/pcl,KevenRing/pcl,v4hn/pcl,stfuchs/pcl,v4hn/pcl,srbhprajapati/pcl,lebronzhang/pcl,mschoeler/pcl,msalvato/pcl_kinfu_highres,shivmalhotra/pcl,KevenRing/vlp,fskuka/pcl,srbhprajapati/pcl,mikhail-matrosov/pcl,cascheberg/pcl,RufaelDev/pcc-mp3dg,MMiknis/pcl,MMiknis/pcl,locnx1984/pcl,nikste/pcl,Tabjones/pcl,3dtof/pcl,shangwuhencc/pcl,KevenRing/vlp,zhangxaochen/pcl,3dtof/pcl,soulsheng/pcl,raydtang/pcl,krips89/pcl_newfeatures,the-glu/pcl,the-glu/pcl,fanxiaochen/mypcltest,MMiknis/pcl,Tabjones/pcl,msalvato/pcl_kinfu_highres,ResByte/pcl,stefanbuettner/pcl,chatchavan/pcl,stefanbuettner/pcl,stfuchs/pcl,kanster/pcl,KevenRing/pcl,starius/pcl,sbec/pcl,chenxingzhe/pcl,stfuchs/pcl,stefanbuettner/pcl,simonleonard/pcl,shangwuhencc/pcl,msalvato/pcl_kinfu_highres,sbec/pcl,stfuchs/pcl,LZRS/pcl,fanxiaochen/mypcltest,ResByte/pcl,zavataafnan/pcl-truck,jakobwilm/pcl,nikste/pcl,wgapl/pcl,locnx1984/pcl,kanster/pcl,krips89/pcl_newfeatures,soulsheng/pcl,fanxiaochen/mypcltest,damienjadeduff/pcl,raydtang/pcl,damienjadeduff/pcl,kanster/pcl,v4hn/pcl,ResByte/pcl,jakobwilm/pcl,pkuhto/pcl,kanster/pcl,mschoeler/pcl,srbhprajapati/pcl,locnx1984/pcl,KevenRing/pcl,LZRS/pcl,wgapl/pcl,zhangxaochen/pcl,nikste/pcl,3dtof/pcl,fskuka/pcl,sbec/pcl,locnx1984/pcl,nh2/pcl,the-glu/pcl,ResByte/pcl,fskuka/pcl,damienjadeduff/pcl,fskuka/pcl,lydhr/pcl,chenxingzhe/pcl,simonleonard/pcl,KevenRing/pcl,mikhail-matrosov/pcl,jeppewalther/kinfu_segmentation,nh2/pcl,closerbibi/pcl,ipa-rmb/pcl,drmateo/pcl,3dtof/pcl,ipa-rmb/pcl,Tabjones/pcl,stefanbuettner/pcl,nikste/pcl,closerbibi/pcl,mschoeler/pcl,RufaelDev/pcc-mp3dg,pkuhto/pcl,KevenRing/pcl,v4hn/pcl,KevenRing/vlp,DaikiMaekawa/pcl,fanxiaochen/mypcltest,LZRS/pcl,drmateo/pcl,soulsheng/pcl,wgapl/pcl,lebronzhang/pcl,simonleonard/pcl,shyamalschandra/pcl,shyamalschandra/pcl,lydhr/pcl,starius/pcl,msalvato/pcl_kinfu_highres,DaikiMaekawa/pcl,wgapl/pcl,soulsheng/pcl,jeppewalther/kinfu_segmentation,krips89/pcl_newfeatures,LZRS/pcl,krips89/pcl_newfeatures,locnx1984/pcl,lebronzhang/pcl,the-glu/pcl,fanxiaochen/mypcltest,KevenRing/vlp,zhangxaochen/pcl,stefanbuettner/pcl,cascheberg/pcl,wgapl/pcl,the-glu/pcl,shivmalhotra/pcl,cascheberg/pcl,drmateo/pcl,jeppewalther/kinfu_segmentation,nikste/pcl,starius/pcl,zavataafnan/pcl-truck,mschoeler/pcl,chatchavan/pcl,pkuhto/pcl,ipa-rmb/pcl,sbec/pcl,chatchavan/pcl,shivmalhotra/pcl,raydtang/pcl,KevenRing/vlp,pkuhto/pcl,nh2/pcl,ipa-rmb/pcl,jakobwilm/pcl,stfuchs/pcl,DaikiMaekawa/pcl,LZRS/pcl,lydhr/pcl,Tabjones/pcl,cascheberg/pcl,zavataafnan/pcl-truck,RufaelDev/pcc-mp3dg,jakobwilm/pcl,jeppewalther/kinfu_segmentation,mikhail-matrosov/pcl,DaikiMaekawa/pcl,RufaelDev/pcc-mp3dg,fskuka/pcl,lebronzhang/pcl,MMiknis/pcl,drmateo/pcl,cascheberg/pcl,chenxingzhe/pcl,mikhail-matrosov/pcl,shyamalschandra/pcl,zhangxaochen/pcl