Found the following significant warnings:
  fork.c:100:29: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  fork.c:187:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  process.c:17:14: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  process.c:26:15: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  process.c:35:15: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  process.c:44:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  process.c:53:15: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  process.c:57:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  process.c:61:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  process.c:70:20: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  register.c:9:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  register.c:10:28: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  register.c:14:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  register.c:15:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  register.c:16:21: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  register.c:17:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  register.c:18:21: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  register.c:19:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  register.c:20:26: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  register.c:21:21: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  register.c:23:28: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  register.c:34:25: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  rlimit.c:52:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  util.c:48:18: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  util.c:56:21: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  util.c:113:21: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  util.c:121:17: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
See ‘/data/gannet/ripley/R/packages/tests-clang/unix.Rcheck/00install.out’ for details.