Found the following significant warnings:
  bayesxsrc/mcmc/fullcond.h:801:5: warning: no return statement in function returning non-void [-Wreturn-type]
  bayesxsrc/mcmc/fullcond.h:863:5: warning: no return statement in function returning non-void [-Wreturn-type]
  bayesxsrc/mcmc/fullcond.h:1192:5: warning: no return statement in function returning non-void [-Wreturn-type]
  bayesxsrc/dag/dagobject.cpp:567:3: warning: no return statement in function returning non-void [-Wreturn-type]
  bayesxsrc/mcmc/distribution.cpp:3848:23: warning: unknown escape sequence: '\%'
  bayesxsrc/mcmc/fullcond_merror.cpp:515:14: warning: operation on ‘help’ may be undefined [-Wsequence-point]
  bayesxsrc/mcmc/fullcond_merror.cpp:850:5: warning: no return statement in function returning non-void [-Wreturn-type]
  bayesxsrc/mcmc/fullcond_merror.cpp:854:5: warning: no return statement in function returning non-void [-Wreturn-type]
  bayesxsrc/mcmc/fullcond_merror.cpp:1136:5: warning: no return statement in function returning non-void [-Wreturn-type]
  bayesxsrc/mcmc/fullcond_mult.cpp:188:3: warning: no return statement in function returning non-void [-Wreturn-type]
  bayesxsrc/mcmc/fullcond_mult.cpp:200:3: warning: no return statement in function returning non-void [-Wreturn-type]
  bayesxsrc/mcmc/gaussian_heteroskedastic.cpp:213:3: warning: control reaches end of non-void function [-Wreturn-type]
  bayesxsrc/mcmc/mcmc_nonp.h:385:4: warning: control reaches end of non-void function [-Wreturn-type]
  bayesxsrc/psplines/spline_basis_surf.cpp:2416:3: warning: no return statement in function returning non-void [-Wreturn-type]
  bayesxsrc/structadd/FC_nonp.cpp:1243:3: warning: control reaches end of non-void function [-Wreturn-type]
  bayesxsrc/structadd/distr.cpp:772:17: warning: unknown escape sequence: '\%'
  bayesxsrc/structadd/distr.cpp:778:17: warning: unknown escape sequence: '\%'
  bayesxsrc/structadd/distr.cpp:784:17: warning: unknown escape sequence: '\%'
  bayesxsrc/structadd/distr_categorical_mult.cpp:182:3: warning: no return statement in function returning non-void [-Wreturn-type]
  bayesxsrc/structadd/superbayesreg.cpp:588:3: warning: no return statement in function returning non-void [-Wreturn-type]
  bayesxsrc/bib/map.h:433:5: warning: control reaches end of non-void function [-Wreturn-type]
See ‘/home/hornik/tmp/R.check/r-patched-gcc/Work/PKGS/BayesXsrc.Rcheck/00install.out’ for details.