In the libs/configure.in the following exists
# The following line helps, e.g. for ncurses which properly detects the # system's terminfo definitions if configured without explicit --prefix. ac_configure_args=`echo "$ac_configure_args" | sed 's@--prefix=[[^ ]]*@@'` This seems to strip --prefix arguments away from being passed to the subdirs. This produces warning in subdirs when looking for the texmf tree unless the tree is installed in /usr/local/texmf. I do not know if this will have a bad effect on the build process or not... (I suspect not)... Ezra