Re-adding ac_configure_args pre/post so that we build libprocess statically and with PIC.
Re-adding ac_configure_args pre/post so that we build libprocess statically and with PIC.

git-svn-id: 03d7800a49d8905ef4fbcc296184319e19243493@1242530 13f79535-47bb-0310-9956-ffa450edef68

wickman/mesos,Aman-Jain-14/customizedMesos,verizonlabs/mesos,asamerh4/mesos,kaysoky/mesos,craimbert/mesos,verizonlabs/mesos,dforsyth/mesos,jpeach/mesos,reneploetz/mesos,verizonlabs/mesos,abudnik/mesos,verizonlabs/mesos,chhsia0/mesos,andschwa/mesos,reneploetz/mesos,zmalik/mesos,dforsyth/mesos,abudnik/mesos,wickman/mesos,yuquanshan/customizedMesos,asamerh4/mesos,abudnik/mesos,andschwa/mesos,neilconway/mesos,Aman-Jain-14/customizedMesos,Aman-Jain-14/customizedMesos,wickman/mesos,gsantovena/mesos,zmalik/mesos,reneploetz/mesos,reneploetz/mesos,Gilbert88/mesos,chhsia0/mesos,Aman-Jain-14/customizedMesos,craimbert/mesos,kaysoky/mesos,verizonlabs/mesos,jpeach/mesos,dforsyth/mesos,gsantovena/mesos,dforsyth/mesos,reneploetz/mesos,neilconway/mesos,dforsyth/mesos,neilconway/mesos,neilconway/mesos,craimbert/mesos,asamerh4/mesos,enachb/mesos,neilconway/mesos,gsantovena/mesos,enachb/mesos,samwhitlock/mesos-monitoring,gsantovena/mesos,andschwa/mesos,Gilbert88/mesos,wickman/mesos,chhsia0/mesos,zmalik/mesos,neilconway/mesos,wickman/mesos,kaysoky/mesos,reneploetz/mesos,gsantovena/mesos,abudnik/mesos,kaysoky/mesos,asamerh4/mesos,zmalik/mesos,enachb/mesos,Aman-Jain-14/customizedMesos,verizonlabs/mesos,craimbert/mesos,wickman/mesos,enachb/mesos,abudnik/mesos,samwhitlock/mesos-monitoring,gsantovena/mesos,samwhitlock/mesos-monitoring,jpeach/mesos,enachb/mesos,samwhitlock/mesos-monitoring,Gilbert88/mesos,gsantovena/mesos,verizonlabs/mesos,jpeach/mesos,Aman-Jain-14/customizedMesos,asamerh4/mesos,kaysoky/mesos,dforsyth/mesos,andschwa/mesos,yuquanshan/customizedMesos,chhsia0/mesos,neilconway/mesos,kaysoky/mesos,reneploetz/mesos,yuquanshan/customizedMesos,chhsia0/mesos,chhsia0/mesos,dforsyth/mesos,yuquanshan/customizedMesos,zmalik/mesos,yuquanshan/customizedMesos,samwhitlock/mesos-monitoring,Gilbert88/mesos,abudnik/mesos,zmalik/mesos,enachb/mesos,zmalik/mesos,jpeach/mesos,jpeach/mesos,wickman/mesos,craimbert/mesos,enachb/mesos,andschwa/mesos,andschwa/mesos,andschwa/mesos,Aman-Jain-14/customizedMesos,abudnik/mesos,yuquanshan/customizedMesos,asamerh4/mesos,Gilbert88/mesos,jpeach/mesos,Gilbert88/mesos,Gilbert88/mesos,chhsia0/mesos,craimbert/mesos,samwhitlock/mesos-monitoring,yuquanshan/customizedMesos,asamerh4/mesos,kaysoky/mesos,craimbert/mesos