-add libgeos, libcgal checking


git-svn-id: http://svn.zoo-project.org/svn/trunk@521 4b6b6ad6-68b3-4dcc-9231-bd9b83bc5dc3
- Add install target, and fix cflags 


git-svn-id: http://svn.zoo-project.org/svn/trunk@522 4b6b6ad6-68b3-4dcc-9231-bd9b83bc5dc3