[Dev-C++] makefile error in 4.9.8.3

Hi, ALL!

Strange problem with DEV-CPP 4.9.8.3.

I use precompiler directive #warning to comment
important points in code.
Dev-Cpp 4.9.8.3 makes bad makefile when #warning in used.

Test source code:
------------------------------------------
int main(int argc, char *argv[])
{
#warning "MyComment"
  return 0;
}
-------------------------------------------


built makefile
-------------------------------------------
# Project: Warn2Mak
# Makefile created by Dev-C++ 4.9.8.3

CPP  = g++.exe
CC   = gcc.exe
WINDRES = windres.exe
RES  =
OBJ  = main.o $(RES)
LINKOBJ  = main.o $(RES)
LIBS =  -L"D:/LANG/MinGW3001/lib"
INCS =  -I"D:/LANG/MinGW3001/include"
CXXINCS =  -I"D:/LANG/MinGW3001/include/c++"  -I"D:/LANG/MinGW3001/include"
BIN  = Warn2Mak.exe
CXXFLAGS = $(CXXINCS)
CFLAGS = $(INCS)

.PHONY: all all-before all-after clean clean-custom

all: all-before Warn2Mak.exe all-after


clean: clean-custom
 rm -f $(OBJ) $(BIN)

$(BIN): $(LINKOBJ)
 $(CC) $(LINKOBJ) -o "Warn2Mak.exe" $(LIBS)

main.o: main.c  main.c:3:2: warning: #warning "MyComment"
 $(CC) -c main.c -o main.o $(CFLAGS)

--------------------------------------------

I attach test project.

Any suggestions?
Thanks in advance
Collins