Found the following significant warnings:
  ./rlang/cnd.h:9:17: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/cnd.h:27:20: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/session.h:6:18: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  20: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/stack.h:13:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./utils.h:384:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/stack.h:7:20: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./order-groups.h:108:34: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./subscript.h:32:48: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./subscript-loc.h:37:46: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  fill.c:205:31: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  fill.c:241:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  init.c:99:33: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  init.c:107:38: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  names.c:206:28: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  names.c:415:28: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  names.c:853:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  order-groups.c:18:34: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  rep.c:8:39: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  rep.c:15:37: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  rep.c:216:43: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  rep.c:217:42: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  rep.c:232:43: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  rep.c:236:42: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  rep.c:292:37: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  rep.c:301:39: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/arg.c:5:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/call.c:65:25: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/cnd.c:106:17: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/cnd.c:147:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/dyn-array.c:122:30: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/env.c:275:25: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/env.c:281:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/fn.c:28:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/globals.c:58:33: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/obj.c:72:36: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/quo.c:8:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/session.c:19:18: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/session.c:28:28: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/stack.c:19:20: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/stack.c:77:26: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/sym.c:56:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./rlang/vendor.c:5:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  utils.c:242:31: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  utils.c:1616:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  version.c:25:26: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
See ‘/data/gannet/ripley/R/packages/tests-clang/vctrs.Rcheck/00install.out’ for details.