Found the following significant warnings:
  Gmake.c:17:19: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Gmake.c:26:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Gmake.c:36:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Gmake.c:57:17: warning: passing arguments to 'getword' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Gmake.c:51:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Gmake.c:66:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Gmake.c:17:12: warning: a function declaration without a prototype is deprecated in all versions of C and is treated as a zero-parameter prototype in C2x, conflicting with a subsequent definition [-Wdeprecated-non-prototype]
  Gmake.c:93:28: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Gmake.c:98:14: warning: passing arguments to 'get_lh' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Gmake.c:88:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Gmake.c:113:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Gmake.c:128:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Gmake.c:174:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Gmake.c:211:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Lmake.c:18:19: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Lmake.c:26:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Lmake.c:36:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Lmake.c:57:17: warning: passing arguments to 'getword' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Lmake.c:63:17: warning: passing arguments to 'getword' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Lmake.c:51:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Lmake.c:73:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Lmake.c:18:12: warning: a function declaration without a prototype is deprecated in all versions of C and is treated as a zero-parameter prototype in C2x, conflicting with a subsequent definition [-Wdeprecated-non-prototype]
  Lmake.c:96:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Lmake.c:119:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Lmake.c:172:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  Lmake.c:224:1: warning: a function definition 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/mapdata.Rcheck/00install.out’ for details.