C++ Makefile missing separator in .dep - c++

Question

On OS X Mavericks i am trying to build a project using the following Makefile:
CC=g++
EXECUTABLE=minigi
SRC_DIR=src
INTERM_DIR=obj
INCLUDES=-I $(SRC_DIR) -I /usr/local/Cg/examples/OpenGL/glew/include/
LIBS=-L/usr/local/lang/NVIDIA_GPU_Computing_SDK/sdk/C/common/lib/linux/ -lpng -stdc++ -lGL -lGLU -lGLEW -lSDLmain -lSDL -lgomp
CFLAGS_COMMON=$(INCLUDES)
CFLAGS=$(CFLAGS_COMMON) -O3 -DNDEBUG -fopenmp
#CFLAGS=$(CFLAGS_COMMON) -g -O0 -D_DEBUG
SOURCE_FILES=$(shell find $(SRC_DIR) -iname '*.cpp')
DEP_FILES=$(SOURCE_FILES:$(SRC_DIR)/%.cpp=./$(INTERM_DIR)/%.dep)
OBJ_FILES=$(SOURCE_FILES:$(SRC_DIR)/%.cpp=./$(INTERM_DIR)/%.o)
all: $(EXECUTABLE)
clean:
rm -rf obj $(EXECUTABLE)
.PHONY: clean all
.SUFFIXES:
.SUFFIXES:.o .dep .cpp .h
$(INTERM_DIR)/%.dep: $(SRC_DIR)/%.cpp
mkdir -p `dirname $#`
printf `dirname $#`/ > $#
$(CC) $(CFLAGS_COMMON) $< -MM | sed -r -e 's,^(.*)\.o\s*\:,\1.o $# :,g' >> $#
ifneq ($(MAKECMDGOALS),clean)
-include $(DEP_FILES)
endif
$(INTERM_DIR)/%.o: $(SRC_DIR)/%.cpp
mkdir -p $(INTERM_DIR)
$(CC) $(CFLAGS) -c $< -o $#
$(EXECUTABLE): $(OBJ_FILES)
$(CC) $^ $(LIBS) -o $#
However, when I type make I get the following error:
obj/app/sdl_gl_appliacation.dep:1: *** missing separator. Stop.
The file obj/app/sdl_gl_application.dep looks as follows:
-n obj/app/
As I know very little about makefiles (and did not write the posted one) every help would be appreciated.
P.S.
I modified the line printf dirname $#/ > $# . In the original file there was an echo -n but that is not working on OS X.

Answer 1

Well, let's clean this up a little bit.
The way the dependencies are handled really is ugly, GCC can do it for you automatically.
EXECUTABLE := minigi
SRC_DIR := src
OBJ_DIR := obj
SRC_FILES := $(wildcard $(SRC_DIR)/*.cpp)
OBJ_FILES := $(SRC_FILES:$(SRC_DIR)/%.cpp=$(OBJ_DIR)/%.o)
DEP_FILES := $(OBJ_FILES:.o=.d)
LDLIBS := -lpng -lstdc++ -lGL -lGLU -lGLEW -lSDLmain -lSDL -lgomp
LDFLAGS := -L/usr/local/lang/NVIDIA_GPU_Computing_SDK/sdk/C/common/lib/linux/
CPPFLAGS := -MMD -MP -DNDEBUG -fopenmp -I $(SRC_DIR) -I /usr/local/Cg/examples/OpenGL/glew/include/
CXXFLAGS := -O3
.PHONY: all clean
all: $(EXECUTABLE)
clean:
$(RM) -r $(OBJ_DIR) $(EXECUTABLE)
$(EXECUTABLE): $(OBJ_FILES)
$(CXX) $(LDFLAGS) $^ $(LDLIBS) -o $#
$(OBJ_DIR)/%.o: $(SRC_DIR)/%.cpp | $(OBJ_DIR)
$(CXX) $(CPPFLAGS) $(CXXFLAGS) -o $# -c $<
$(OBJ_DIR):
mkdir $#
ifeq "$(MAKECMDGOALS)" ""
-include $(DEP_FILES)
endif
Some quick notes :
You're using C++, so you should use $(CXX) instead of $(CC) which is used for C code.
Along with this, you should use $(CXXFLAGS) instead of $(CFLAGS).
$(CPPFLAGS) is meant for preprocessor flags (-I, -D, or -fopenmp which is a compile-time flag).
-MMD -MP preprocessor flags will auto-generate dependency files when compiling. Learn more.
$(LDFLAGS) is meant for linker flags such as -L flags.
$(LDLIBS) is meant for linker libs such as -l flags
Avoid using the $(shell ) function since it will be executed every time the variable is expanded when assigned with the = operator instead of the := operator. $(wildcard ) is more suited for the job of listing files.