Example Q&D makefile. untested.

Makefile

CFLAGS="-g -Wall"
DEPS="foo.o bar.o baz.o"

TARGET=progname

.PHONY: clean all

$(TARGET): $(DEPS)
  $(CXX) -o $(TARGET) $(CFLAGS) $(CXXFLAGS) $(DEPS)

clean:
  rm $(TARGET) $(DEPS)

all: $(TARGET)

CFLAGS+=-DSTANDALONE -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS -DTARGET_POSIX -D_LINUX -fPIC -DPIC -D_REENTRANT -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -U_FORTIFY_SOURCE -Wall -g -DHAVE_LIBOPENMAX=2 -DOMX -DOMX_SKIP64BIT -ftree-vectorize -pipe -DUSE_EXTERNAL_OMX -DHAVE_LIBBCM_HOST -DUSE_EXTERNAL_LIBBCM_HOST -DUSE_VCHIQ_ARM -Wno-psabi

LDFLAGS+=-L$(SDKSTAGE)/opt/vc/lib/ -lGLESv2 -lEGL -lopenmaxil -lbcm_host -lvcos -lvchiq_arm /opt/vc/src/hello_pi/libs/ilclient/libilclient.a

INCLUDES+=-I$(SDKSTAGE)/opt/vc/include/ -I$(SDKSTAGE)/opt/vc/include/interface/vcos/pthreads -I./ -I/opt/vc/src/hello_pi/libs/ilclient -I/opt/vc/src/hello_pi/libs/vgfont

DEPS="main.o matrix.o glWrapper.o bufferManager.o shaderManager.o"

TARGET=rpg

.PHONY: clean all

$(TARGET): $(DEPS)
$(CXX) -o $(TARGET) $(CFLAGS) $(LDFLAGS) $(INCLUDES) $(CXXFLAGS) $(DEPS)

clean:
rm $(TARGET) $(DEPS)

all: $(TARGET)

pi@raspberrypi:~/rpg$ make
make: *** No rule to make target "main.o', needed byrpg'. Stop.