Found the following significant warnings:
  Ediggra.c:21:12: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Efiksel.c:21:12: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Efiksel.c:21:19: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Egeyer.c:28:12: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Estrauss.c:25:12: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  call3d.c:108:9: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  denspt.c:27:12: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  denspt.c:27:19: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  densptcross.c:25:12: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  densptcross.c:25:19: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  digber.c:22:12: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  digber.c:22:20: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  k3.c:49:19: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  k3.c:49:30: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  k3.c:107:19: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  k3.c:107:30: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  pcf3.c:43:19: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  pcf3.c:43:30: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  pcf3.c:128:19: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  pcf3.c:128:30: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  scan.c:16:18: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  sphefrac.c:46:11: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  sphefrac.c:46:17: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  sphefrac.c:46:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  sphefrac.c:114:11: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  sphefrac.c:124:11: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  sphefrac.c:135:11: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  sphevol.c:50:11: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  sphevol.c:50:17: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  sphevol.c:50:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  sphevol.c:117:10: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  sphevol.c:136:10: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  sphevol.c:162:10: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  sphevol.c:194:10: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
See ‘/data/gannet/ripley/R/packages/tests-clang/spatstat.core.Rcheck/00install.out’ for details.