csage: dist fix
sage-ext: dist dix
toplevel: TODO
toplevel: pass abs_top_srcdir to spkg-install through environment
atlas: correctly locate external tarball
python-sage move pyx->pyxx
python-sage move pyx->pyxx
toplevel deps
toplevel: sagedist: better now
sage-bin: remove ECLDIR from env.sh (ecl takes care of it)
sagelib: build system
ecl: spkg-install: env
maxima: env
python-sage build-system cleanup