let bindings = bindgen::Builder::default()
        .header("wrapper.h")
        .blacklist_type("max_align_t")
        .generate()
        .expect("Unable to generate bindings.");
    bindings
        .write_to_file(out.join("bindings.rs"))
        .expect("Could not write bindings.");

extern "C" {
    /// bcf_hdr_set_samples() - for more efficient VCF parsing when only one/few samples are needed
    /// @samples: samples to include or exclude from file or as a comma-separated string.
    /// LIST|FILE   .. select samples in list/file
    /// ^LIST|FILE  .. exclude samples from list/file
    /// -           .. include all samples
    /// NULL        .. exclude all samples
    /// @is_file: @samples is a file (1) or a comma-separated list (0)
    ///
    /// The bottleneck of VCF reading is parsing of genotype fields. If the
    /// reader knows in advance that only subset of samples is needed (possibly
    /// no samples at all), the performance of bcf_read() can be significantly
    /// improved by calling bcf_hdr_set_samples after bcf_hdr_read().
    /// The function bcf_read() will subset the VCF/BCF records automatically
    /// with the notable exception when reading records via bcf_itr_next().
    /// In this case, bcf_subset_format() must be called explicitly, because
    /// bcf_readrec() does not see the header.
    ///
    /// Returns 0 on success, -1 on error or a positive integer if the list
    /// contains samples not present in the VCF header. In such a case, the
    /// return value is the index of the offending sample.
    pub fn bcf_hdr_set_samples(
        hdr: *mut bcf_hdr_t,
        samples: *const ::std::os::raw::c_char,
        is_file: ::std::os::raw::c_int,
    ) -> ::std::os::raw::c_int;
}