Found the following significant warnings:
  correlation.c:62:39: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  correlation.c:104:41: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  correlation.c:114:92: warning: data argument not used by format string [-Wformat-extra-args]
  correlation.c:120:101: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  correlation.c:139:49: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  correlation.c:139:55: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  correlation.c:139:60: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  correlation.c:139:83: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  correlation.c:170:56: warning: data argument not used by format string [-Wformat-extra-args]
  ctlio.c:86:46: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  mapctl.c:59:33: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  mapctl.c:66:23: warning: data argument not used by format string [-Wformat-extra-args]
  mapctl.c:69:27: warning: data argument not used by format string [-Wformat-extra-args]
  mapctl.c:71:23: warning: data argument not used by format string [-Wformat-extra-args]
  mapctl.c:91:67: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  mapctl.c:91:82: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  mapctl.c:110:90: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  mapctl.c:110:95: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  mapctl.c:110:98: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  matrix.c:14:74: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  matrix.c:14:80: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  matrix.c:22:75: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  matrix.c:22:81: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  matrix.c:29:74: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  matrix.c:29:82: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  matrix.c:36:75: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  matrix.c:36:83: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  matrix.c:63:28: warning: data argument not used by format string [-Wformat-extra-args]
  matrix.c:66:16: warning: data argument not used by format string [-Wformat-extra-args]
  matrix.c:74:28: warning: data argument not used by format string [-Wformat-extra-args]
  matrix.c:77:16: warning: data argument not used by format string [-Wformat-extra-args]
  permutation.c:41:52: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  permutation.c:65:52: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  rmapctl.c:59:44: warning: data argument not used by format string [-Wformat-extra-args]
  rmapctl.c:66:35: warning: data argument not used by format string [-Wformat-extra-args]
  rmapctl.c:71:48: warning: data argument not used by format string [-Wformat-extra-args]
  rmapctl.c:80:35: warning: data argument not used by format string [-Wformat-extra-args]
  rmapctl.c:84:35: warning: data argument not used by format string [-Wformat-extra-args]
  structs.c:19:86: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  structs.c:19:89: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  vector.c:13:72: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  vector.c:19:72: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  vector.c:25:72: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  vector.c:38:75: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  vector.c:45:75: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  vector.c:52:75: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
  vector.c:59:13: warning: data argument not used by format string [-Wformat-extra-args]
  vector.c:60:74: warning: data argument not used by format string [-Wformat-extra-args]
  vector.c:61:13: warning: data argument not used by format string [-Wformat-extra-args]
  vector.c:66:13: warning: data argument not used by format string [-Wformat-extra-args]
  vector.c:67:76: warning: data argument not used by format string [-Wformat-extra-args]
  vector.c:68:13: warning: data argument not used by format string [-Wformat-extra-args]
  vector.c:73:13: warning: data argument not used by format string [-Wformat-extra-args]
  vector.c:74:74: warning: data argument not used by format string [-Wformat-extra-args]
  vector.c:75:13: warning: data argument not used by format string [-Wformat-extra-args]
  vector.c:81:13: warning: data argument not used by format string [-Wformat-extra-args]
  vector.c:82:79: warning: data argument not used by format string [-Wformat-extra-args]
  vector.c:83:15: warning: data argument not used by format string [-Wformat-extra-args]
See ‘/data/gannet/ripley/R/packages/tests-clang/ctl.Rcheck/00install.out’ for details.
* used C compiler: ‘clang version 17.0.5’