I completed nsf/build.sh, including support for static builds and cross-compilation. Tested with all make-kit-* recipes (or variants thereof) in build/* subdir (each in static/dynamic settings), except for:

make-kit-android-arm
make-kit-hpux-hppa64
make-kit-solaris-*
make-minkit

(simply don't have access to suitable toolchains)

The final build.sh is now attached to the ticket. Was also tested with trunk/tip kitcreator as of today.