Found the following significant warnings:
  RcppExports.cpp:67:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:102:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:138:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:174:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:208:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:244:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:290:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:324:18: 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:392:18: 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:529:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:569:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:604:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:640:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:673:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:734:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:767:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:808:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:842:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:878:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:914:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:955:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:988:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1022:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1056:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1089:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1123:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1157:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1191:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1225:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1259:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1293:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1327:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1360:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1394:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1428:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1462:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1496:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1529:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1565:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1599:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1633:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1667:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1704:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1740:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1785:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  RcppExports.cpp:1819:18: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  par_solve.cpp:369:30: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
See ‘/home/hornik/tmp/R.check/r-devel-clang/Work/PKGS/rxode2.Rcheck/00install.out’ for details.
* used C compiler: ‘Debian clang version 17.0.5 (1)’
* used Fortran compiler: ‘Debian flang-new version 17.0.5 (1)’
* used C++ compiler: ‘Debian clang version 17.0.5 (1)’