Found the following significant warnings:
  ./rpart.h:78:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rpart.h:79:26: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rpart.h:80:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rpart.h:81:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  bsplit.c:56:15: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  gini.c:15:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  gini.c:199:32: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  gini.c:224:29: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  gini.c:227:29: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  gini.c:308:29: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  gini.c:311:29: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  partition.c:44:13: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ./func_table.h:50:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./func_table.h:51:26: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./func_table.h:52:18: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./func_table.h:53:21: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  rpart.c:201:20: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  rpart.c:211:16: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  rundown.c:30:25: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  rundown.c:39:25: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  xpred.c:193:16: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  xpred.c:275:13: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  xpred.c:276:13: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  xval.c:135:13: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  xval.c:136:13: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
See ‘/data/gannet/ripley/R/packages/tests-clang/rpart.Rcheck/00install.out’ for details.