Found the following significant warnings:
  randomForestSRC.h:412:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:413:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:609:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:610:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:612:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:613:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:924:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:1002:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:1163:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:1164:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:1355:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:1509:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:1514:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:1515:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:1874:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:1875:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:1888:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:1895:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:1906:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:1907:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:1908:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:1909:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:1910:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:1911:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:2003:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:2004:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:2223:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:2225:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.h:2242:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:3077:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:3079:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:3083:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:3184:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:6492:16: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:6504:22: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:7706:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:9300:13: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:11641:18: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:11645:18: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  splitCustom.h:22:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:16052:16: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:21074:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:21120:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:21506:18: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:28716:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:29033:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:29483:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:29530:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:29549:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:29562:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:29567:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:29590:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:29599:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:31181:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:31244:11: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:34996:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:35009:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  randomForestSRC.c:35185:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  ../inst/include/lapacke.h:161:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  ../inst/include/lapacke/lapacke_nancheck.h:38:12: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  splitCustom.c:24:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
See ‘/data/gannet/ripley/R/packages/tests-devel/CovRegRF.Rcheck/00install.out’ for details.