Found the following significant warnings:
  RcppExports.cpp:46:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:80:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:115:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:149:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:184:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:219:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:254:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:288:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:322:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:358:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:393:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:427:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:461:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:495:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:530:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:565:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:599:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:634:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
See ‘/home/hornik/tmp/R.check/r-devel-clang/Work/PKGS/primes.Rcheck/00install.out’ for details.
* used C++ compiler: ‘Debian clang version 17.0.5 (1)’