don't pass --with-keep.source for R < 2.14
don't pass --with-keep.source for R < 2.14

pssguy/rstudio,piersharding/rstudio,john-r-mcpherson/rstudio,nvoron23/rstudio,JanMarvin/rstudio,jrnold/rstudio,pssguy/rstudio,john-r-mcpherson/rstudio,jar1karp/rstudio,suribes/rstudio,vbelakov/rstudio,jar1karp/rstudio,maligulzar/Rstudio-instrumented,githubfun/rstudio,githubfun/rstudio,suribes/rstudio,brsimioni/rstudio,edrogers/rstudio,thklaus/rstudio,tbarrongh/rstudio,john-r-mcpherson/rstudio,more1/rstudio,suribes/rstudio,jrnold/rstudio,john-r-mcpherson/rstudio,piersharding/rstudio,thklaus/rstudio,brsimioni/rstudio,githubfun/rstudio,jar1karp/rstudio,jzhu8803/rstudio,vbelakov/rstudio,maligulzar/Rstudio-instrumented,more1/rstudio,sfloresm/rstudio,maligulzar/Rstudio-instrumented,JanMarvin/rstudio,githubfun/rstudio,piersharding/rstudio,pssguy/rstudio,jrnold/rstudio,JanMarvin/rstudio,piersharding/rstudio,maligulzar/Rstudio-instrumented,john-r-mcpherson/rstudio,jrnold/rstudio,jar1karp/rstudio,jar1karp/rstudio,thklaus/rstudio,sfloresm/rstudio,jrnold/rstudio,jzhu8803/rstudio,brsimioni/rstudio,tbarrongh/rstudio,more1/rstudio,more1/rstudio,jar1karp/rstudio,nvoron23/rstudio,vbelakov/rstudio,sfloresm/rstudio,brsimioni/rstudio,piersharding/rstudio,tbarrongh/rstudio,more1/rstudio,vbelakov/rstudio,sfloresm/rstudio,suribes/rstudio,suribes/rstudio,tbarrongh/rstudio,sfloresm/rstudio,more1/rstudio,edrogers/rstudio,jrnold/rstudio,john-r-mcpherson/rstudio,JanMarvin/rstudio,JanMarvin/rstudio,jrnold/rstudio,suribes/rstudio,thklaus/rstudio,tbarrongh/rstudio,thklaus/rstudio,piersharding/rstudio,jar1karp/rstudio,githubfun/rstudio,jrnold/rstudio,githubfun/rstudio,nvoron23/rstudio,pssguy/rstudio,maligulzar/Rstudio-instrumented,jzhu8803/rstudio,tbarrongh/rstudio,thklaus/rstudio,piersharding/rstudio,brsimioni/rstudio,maligulzar/Rstudio-instrumented,john-r-mcpherson/rstudio,vbelakov/rstudio,vbelakov/rstudio,sfloresm/rstudio,thklaus/rstudio,tbarrongh/rstudio,jzhu8803/rstudio,sfloresm/rstudio,more1/rstudio,githubfun/rstudio,JanMarvin/rstudio,nvoron23/rstudio,pssguy/rstudio,vbelakov/rstudio,piersharding/rstudio,sfloresm/rstudio,edrogers/rstudio,pssguy/rstudio,jar1karp/rstudio,jrnold/rstudio,nvoron23/rstudio,jar1karp/rstudio,suribes/rstudio,more1/rstudio,maligulzar/Rstudio-instrumented,jzhu8803/rstudio,vbelakov/rstudio,edrogers/rstudio,jzhu8803/rstudio,brsimioni/rstudio,pssguy/rstudio,maligulzar/Rstudio-instrumented,pssguy/rstudio,john-r-mcpherson/rstudio,JanMarvin/rstudio,JanMarvin/rstudio,edrogers/rstudio,nvoron23/rstudio,tbarrongh/rstudio,jzhu8803/rstudio,jzhu8803/rstudio,edrogers/rstudio,nvoron23/rstudio,edrogers/rstudio,brsimioni/rstudio,brsimioni/rstudio,JanMarvin/rstudio,maligulzar/Rstudio-instrumented,suribes/rstudio,piersharding/rstudio,thklaus/rstudio,githubfun/rstudio,edrogers/rstudio