> I updated bcftools in Git but when trying to build I get
> vcfmerge.c:3213:36: error: 'BCF_SR_ALLOW_NO_IDX' undeclared (first use in this function)
It is almost always the case that samtools 1.N and bcftools 1.N both require htslib 1.N.
In this case, bcftools 1.11 uses htslib-1.11 facilities that were not present in htslib 1.10.2.
John