Found the following significant warnings:
  ./randomForestSRC.h:412:33: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:413:45: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:609:15: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:610:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:612:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:613:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:924:20: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:1002:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:1163:40: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:1164:41: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:1355:33: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:1509:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:1514:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:1515:37: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:1874:39: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:1875:36: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:1888:17: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:1895:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:1906:33: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:1907:35: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:1908:34: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:1909:36: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:1910:34: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:1911:36: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:2003:13: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:2004:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:2223:12: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:2225:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./randomForestSRC.h:2242:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:3077:15: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:3079:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:3083:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:3184:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:6492:33: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:6504:45: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:7706:20: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:9300:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:11641:40: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:11645:41: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./splitCustom.h:22:29: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:16052:33: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:21074:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:21120:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:21506:37: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:28716:39: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:29033:17: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:29483:33: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:29530:35: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:29549:34: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:29562:36: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:29567:34: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:29590:36: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:29599:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:31181:13: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:31244:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:34996:12: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:35009:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  randomForestSRC.c:35185:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ../inst/include/lapacke.h:161:25: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ../inst/include/lapacke/lapacke_nancheck.h:38:32: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  splitCustom.c:24:29: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
See ‘/data/gannet/ripley/R/packages/tests-clang/CovRegRF.Rcheck/00install.out’ for details.
* used C compiler: ‘clang version 15.0.6’