Compiling samtools requires the zlib library ; compiling the alignment viewer further requires the GNU ncurses library . Please type `./configure; make' to compile samtools. If it fails, try `make -f Makefile.generic'. If the compilation still fails due to errors in RAZF or the lack of ncurses, try `make -f Makefile.lite' to disable the alignment viewer and the RAZF-enhanced FASTA indexer.