Fixed support of build env vars for dynamic bash extension configure script
Fixed support of build env vars for dynamic bash extension configure script

rbenv/rbenv,pyenv/pyenv,cehoffman/rbenv,yyyc514/rbenv,viclim/rbenv,docwhat/rbenv,jrolfs/nodenv,sstephenson/rbenv,nodenv/nodenv,cehoffman/rbenv,jasonkarns/rbenv,jasonkarns/rbenv,jrolfs/nodenv,cehoffman/rbenv,sstephenson/rbenv,viclim/rbenv,docwhat/rbenv,sstephenson/rbenv,yyuu/pyenv,jasonkarns/rbenv,sebhahn/pyenv,sebhahn/pyenv,yyyc514/rbenv,docwhat/rbenv,OiNutter/nodenv,OiNutter/nodenv,nodenv/nodenv,sebhahn/pyenv,pyenv/pyenv,yyyc514/rbenv,yyuu/pyenv,pyenv/pyenv,viclim/rbenv,rbenv/rbenv