Found the following significant warnings:
  parse_err.h:148:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parse_err.h:149:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parse_err.h:150:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parse_err.h:151:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp.h:96:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp.h:104:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp.h:105:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp.h:106:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp.h:107:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp.h:108:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp.h:109:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parse_hash.h:42:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parse_hash.h:43:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  imm-reward.h:83:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  imm-reward.h:87:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:48:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:52:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:54:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:55:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:56:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:61:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:62:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:63:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:64:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:776:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:900:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:949:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:970:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:1399:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:1413:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:1461:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:1498:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:1535:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parser.y:1596:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  scanner.l:53:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  scanner.l:100:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  scanner.l:112:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  scanner.l:124:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  scanner.l:149:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  imm-reward.c:116:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  imm-reward.c:285:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parse_err.c:78:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parse_err.c:97:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parse_err.c:191:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parse_err.c:282:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp.c:107:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp.c:216:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp.c:269:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp.c:305:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp.c:338:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp.c:398:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp.c:511:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parse_hash.c:38:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  parse_hash.c:47:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  read.c:58:5: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp/mdp.h:96:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp/mdp.h:104:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp/mdp.h:105:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp/mdp.h:106:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp/mdp.h:107:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp/mdp.h:108:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mdp/mdp.h:109:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  global.h:300:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  global.h:304:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  global.h:309:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  pomdp.h:73:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  pomdp.h:79:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  pomdp.h:87:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  pomdp.h:113:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  alpha.h:164:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  alpha.h:225:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  alpha.h:292:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  alpha.c:67:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  alpha.c:274:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  alpha.c:592:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  belief.h:81:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  belief.c:67:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  command-line.h:104:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  config-file.h:91:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  program-options.h:148:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  pomdp-solve-options.h:878:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  params.h:480:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  projection.h:61:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  enumeration.h:73:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  enumeration.h:75:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  two-pass.h:75:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  two-pass.h:77:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  witness.h:69:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  witness.h:71:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  inc-prune.h:78:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  inc-prune.h:80:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  random.h:68:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  random.h:71:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  random.h:88:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  common.h:74:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  common.h:77:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  common.c:127:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  common.c:157:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  enumeration.c:198:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  enumeration.c:204:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  finite-grid.h:76:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  finite-grid.c:312:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  finite-grid.c:339:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  finite-grid.c:483:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  global.c:88:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  global.c:102:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  global.c:116:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  inc-prune.c:66:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  inc-prune.c:72:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  vertex-enum.h:163:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  vertex-enum.h:175:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  linear-support.c:83:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  linear-support.c:95:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  linear-support.c:279:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  lp-interface.h:223:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  lp-interface.c:148:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  lp-interface.c:268:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  pomdp-solve-options.c:92:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  timing.h:65:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  params.c:85:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  params.c:228:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  pomdp.c:72:8: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  pomdp.c:85:8: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  pomdp.c:195:6: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  pomdp.c:247:5: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  signal-handler.h:83:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mcgs.h:70:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  pomdp-solve.h:76:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  projection.c:70:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  random.c:82:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  random.c:102:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  random.c:113:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  random.c:185:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  signal-handler.c:317:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  timing.c:96:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  two-pass.c:76:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  two-pass.c:82:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  vertex-enum.c:273:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  vertex-enum.c:690:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  vertex-enum.c:1964:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  witness.c:87:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  witness.c:95:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  sim.c:161:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  mcgs.c:83:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  command-line.c:63:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  config-file.c:61:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  program-options.c:97:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
See ‘/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/pomdpSolve.Rcheck/00install.out’ for details.