/*!
@abstract Build index for a FASTA or razip compressed FASTA file.
@param fn FASTA file name
+ @return 0 on success; or -1 on failure
@discussion File "fn.fai" will be generated.
*/
- void fai_build(const char *fn);
+ int fai_build(const char *fn);
/*!
@abstract Distroy a faidx_t struct.