Found the following significant warnings:
  ./st.h:69:19: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./st.h:70:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./st.h:128:55: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./st.h:129:35: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./st.h:130:41: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  st.c:327:50: 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]
  st.c:889:2: 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]
  st.c:931:6: 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]
  st.c:978:6: 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]
  st.c:1086:6: 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]
  st.c:1603:46: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  st.c:1626:18: 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]
  st.c:1655:26: 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]
  st.c:1722:38: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./ptr_table.h:53:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./script_loc.h:13:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./node.h:62:19: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./node.h:72:37: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./node.h:83:31: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./var_hash.h:16:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./vm_label.h:4:19: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  node.c:106:21: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  node.c:228:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ptr_table.c:11:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./sailr.h:12:43: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./sailr.h:26:42: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./vm/vm_stack.h:93:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./vm/func/ext_func/ext_func_hash.h:21:34: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  sailr.c:46:21: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  sailr.c:113:20: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./sailr_ext.h:14:47: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  sailr_ext.c:8:25: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  script_loc.c:8:9: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  var_hash.c:12:15: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  vm_label.c:19:19: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  vm/vm_stack.h:93:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  vm/func/ext_func/ext_func_hash.h:21:34: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  vm/vm_stack.c:25:14: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  simple_re/simple_re.c:10:14: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  vm/func/ext_func/ext_func_hash.c:6:19: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
See ‘/data/gannet/ripley/R/packages/tests-clang/datasailr.Rcheck/00install.out’ for details.