Found the following significant warnings:
  ./Rsrv.h:433:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./RSserver.h:49:36: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./RSserver.h:59:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./RSserver.h:60:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./RSserver.h:69:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  RSserver.c:49:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  RSserver.c:171:36: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rsrv.h:427:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./ulog.h:6:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./ulog.h:8:14: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./ulog.h:10:17: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./ulog.h:11:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./md5.h:12:20: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./md5.h:13:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./md5.h:14:21: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./md5.h:15:25: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./tls.h:16:15: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:381:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:505:15: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:508:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:510:26: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:989:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:1038:26: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:1083:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:1095:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:1890:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:1947:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:2234:36: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:2560:16: warning: 'd2i_RSAPrivateKey' is deprecated [-Wdeprecated-declarations]
  Rserv.c:2572:16: warning: 'RSA_new' is deprecated [-Wdeprecated-declarations]
  Rserv.c:2580:13: warning: 'RSA_free' is deprecated [-Wdeprecated-declarations]
  Rserv.c:2585:7: warning: 'RSA_generate_key_ex' is deprecated [-Wdeprecated-declarations]
  Rserv.c:2587:4: warning: 'RSA_free' is deprecated [-Wdeprecated-declarations]
  Rserv.c:2619:7: warning: 'i2d_RSAPublicKey' is deprecated [-Wdeprecated-declarations]
  Rserv.c:2627:21: warning: 'RSA_size' is deprecated [-Wdeprecated-declarations]
  Rserv.c:2630:11: warning: 'RSA_private_decrypt' is deprecated [-Wdeprecated-declarations]
  Rserv.c:2689:18: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:2693:26: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:2712:20: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:2753:31: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:2886:28: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:2896:28: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:2901:31: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:2923:26: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:3165:31: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:4910:34: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:4918:36: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  Rserv.c:4991:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ioc.c:135:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ioc.c:136:26: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ioc.c:137:25: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ioc.c:144:14: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  md5.c:67:6: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ./md5.h:12:13: 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]
  md5.c:109:14: warning: passing arguments to 'MD5Transform' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  md5.c:118:14: warning: passing arguments to 'MD5Transform' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  md5.c:83:6: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ./md5.h:13:13: 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]
  md5.c:154:14: warning: passing arguments to 'MD5Transform' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  md5.c:168:17: warning: passing arguments to 'MD5Transform' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  md5.c:132:6: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ./md5.h:14:13: 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]
  md5.c:192:6: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ./md5.h:15:13: 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]
  ./session.h:18:31: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  session.c:68:19: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  session.c:69:31: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  tls.c:29:15: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ulog.c:79:17: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ulog.c:83:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ulog.c:155:14: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ulog.c:182:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  utils.c:81:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:381:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:505:15: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:508:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:510:26: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:989:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:1038:26: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:1083:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:1095:23: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:1890:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:1947:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:2234:36: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:2560:16: warning: 'd2i_RSAPrivateKey' is deprecated [-Wdeprecated-declarations]
  ./Rserv.c:2572:16: warning: 'RSA_new' is deprecated [-Wdeprecated-declarations]
  ./Rserv.c:2580:13: warning: 'RSA_free' is deprecated [-Wdeprecated-declarations]
  ./Rserv.c:2585:7: warning: 'RSA_generate_key_ex' is deprecated [-Wdeprecated-declarations]
  ./Rserv.c:2587:4: warning: 'RSA_free' is deprecated [-Wdeprecated-declarations]
  ./Rserv.c:2619:7: warning: 'i2d_RSAPublicKey' is deprecated [-Wdeprecated-declarations]
  ./Rserv.c:2627:21: warning: 'RSA_size' is deprecated [-Wdeprecated-declarations]
  ./Rserv.c:2630:11: warning: 'RSA_private_decrypt' is deprecated [-Wdeprecated-declarations]
  ./Rserv.c:2689:18: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:2693:26: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:2712:20: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:2753:31: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:2886:28: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:2896:28: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:2901:31: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:2923:26: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:3165:31: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:4910:34: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:4918:36: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./Rserv.c:4991:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./server.h:79:36: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./server.h:89:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./server.h:90:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./server.h:99:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./tls.h:12:15: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  ./chandler.h:21:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  server.c:51:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  server.c:205:36: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  server.c:329:34: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  server.c:337:36: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  server.c:366:16: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  chandler.c:31:27: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
See '/home/hornik/tmp/R.check/r-devel-clang/Work/PKGS/Rserve.Rcheck/00install.out' for details.