message: disable precompiled headers properly
diff: @@ -18,6 +18,8 @@ $(CMDSTAN_MAIN_O) : $(CMDSTAN_MAIN)
  ##
  $(STAN)src/stan/model/model_header$(STAN_FLAGS).d : $(STAN)src/stan/model/model_header.hpp
  $(COMPILE.cpp) $(DEPFLAGS) $<
  +
  +ifneq ($(PRECOMPILED_MODEL_HEADER),)
  $(STAN)src/stan/model/model_header$(STAN_FLAGS).d : DEPTARGETS = -MT $(patsubst %.d,%.hpp.gch,$@) -MT $@
  $(STAN)src/stan/model/model_header$(STAN_FLAGS).hpp.gch : $(STAN)src/stan/model/model_header.hpp
  @echo ''
  @@ -26,7 +28,8 @@ $(STAN)src/stan/model/model_header$(STAN_FLAGS).hpp.gch : $(STAN)src/stan/model/
  ifeq ($(CXX_TYPE),clang)
  CXXFLAGS_PROGRAM += -include-pch $(STAN)src/stan/model/model_header$(STAN_FLAGS).hpp.gch
  -$(STAN_TARGETS) examples/bernoulli/bernoulli$(EXE) $(patsubst %.stan,%$(EXE),$(wildcard src/test/test-models/*.stan)) : %$(EXE) : $(STAN)src/stan/model/model_header$(STAN_FLAGS).hpp.gch
  +$(STAN_TARGETS) examples/bernoulli/bernoulli$(EXE) $(patsubst %.stan,%$(EXE),$(wildcard src/test/test-models/*.stan)) : %$(EXE)
  +endif
  endif
  ifneq ($(findstring allow_undefined,$(STANCFLAGS))$(findstring allow-undefined,$(STANCFLAGS)),)
  