Override hnswlib's std::cerr to avoid CRAN check warnings.

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: BiocNeighbors
-Version: 1.20.1
-Date: 2023-11-29
+Version: 1.20.2
+Date: 2024-01-05
 Title: Nearest Neighbor Detection for Bioconductor Packages
 Authors@R: c(person("Aaron", "Lun", role=c("aut", "cre", "cph"),
     email="[email protected]"))

src/RcppExports.cpp

@@ -5,6 +5,11 @@
 
 using namespace Rcpp;
 
+#ifdef RCPP_USE_GLOBAL_ROSTREAM
+Rcpp::Rostream<true>&  Rcpp::Rcout = Rcpp::Rcpp_cout_get();
+Rcpp::Rostream<false>& Rcpp::Rcerr = Rcpp::Rcpp_cerr_get();
+#endif
+
 // annoy_version
 Rcpp::IntegerVector annoy_version();
 RcppExport SEXP _BiocNeighbors_annoy_version() {

src/hnsw.h

@@ -10,6 +10,9 @@
 // Avoid discrepancies with AVX.
 #define NO_MANUAL_VECTORIZATION
 
+// Avoid CRAN problems with std::cerr.
+#define HNSWLIB_ERR_OVERRIDE Rcpp::Rcerr
+
 // Avoid compilation problems on Windows.
 #define STRICT_R_HEADERS