the utility is used at uncompress time of all packages after glibc is rebuilt. a corruption of the new glibc and/or an incompatibility will create problems. after all, that's the reason why you're using spython aren't you ? fix is simple : in the source package of bzip2, the makefile uses ${CFLAGS} (sic !) at link time. patch the makefile so that ${LDFLAGS} is used at link time and export LDFLAGS=--static when compiling with static or build use.
Are you sure this is a problem? Portage is using a new update system which should solve dynamic lib problems. We no longer need spython and we have a dynamic bash, so I'm setting this bug to WORKSFORME.
