Mark as broken on powerpc64. The entire, unhelpful, error message is:
- gmake[2]: Leaving directory '/wrkdirs/usr/ports/biology/ncbi-blast+/work/ncbi-blast-2.5.0+-src/c++/ReleaseMT/build'
- gmake[1]: *** [Makefile:24: all] Error 2
Approved by: portmgr (tier-2 blanket)