source/install.sh is shipped sans execute bits. It needs to be chmoded to 755.
Fixed in CVS, although I don't think we actually use install-sh anywhere(!). You will need to make a new checkout to see the changes, or 'rm install-sh' then 'cvs update install-sh;
originally reported against one of the 3.0.0rc[1-4] releases. Cleaning up non-production versions.
sorry for the same, cleaning up the database to prevent unecessary reopens of bugs.