Build c program for release and build

The original makefile comes for Release build.

Original

APP:= deepstream-app

TARGET_DEVICE = $(shell gcc -dumpmachine | cut -f1 -d -)

NVDS_VERSION:=5.0

LIB_INSTALL_DIR?=/opt/nvidia/deepstream/deepstream-$(NVDS_VERSION)/lib/
APP_INSTALL_DIR?=/opt/nvidia/deepstream/deepstream-$(NVDS_VERSION)/bin/

ifeq ($(TARGET_DEVICE),aarch64)
  CFLAGS:= -DPLATFORM_TEGRA
endif

SRCS:= $(wildcard *.c)
SRCS+= $(wildcard ../../apps-common/src/*.c)

INCS:= $(wildcard *.h)

PKGS:= gstreamer-1.0 gstreamer-video-1.0 x11

OBJS:= $(SRCS:.c=.o)

CFLAGS+= -I../../apps-common/includes -I../../../includes -DDS_VERSION_MINOR=0 -DDS_VERSION_MAJOR=5

LIBS+= -L$(LIB_INSTALL_DIR) -lnvdsgst_meta -lnvds_meta -lnvdsgst_helper -lnvdsgst_smartrecord -lnvds_utils -lm \
       -lgstrtspserver-1.0 -ldl -Wl,-rpath,$(LIB_INSTALL_DIR)

CFLAGS+= `pkg-config --cflags $(PKGS)`

LIBS+= `pkg-config --libs $(PKGS)`

all: $(APP)

%.o: %.c $(INCS) Makefile
    $(CC)  -c -o $@ $(CFLAGS) $<

$(APP): $(OBJS) Makefile
    $(CC) -o $(APP) $(OBJS) $(LIBS)

install: $(APP)
    cp -rv $(APP) $(APP_INSTALL_DIR)

clean:
    rm -rf $(OBJS) $(APP) 

Modified for both Release and Debug

APP:= deepstream-app
DEBUGAPP:= deepstream-app-debug

TARGET_DEVICE = $(shell gcc -dumpmachine | cut -f1 -d -)

NVDS_VERSION:=5.0

LIB_INSTALL_DIR?=/opt/nvidia/deepstream/deepstream-$(NVDS_VERSION)/lib/
APP_INSTALL_DIR?=/opt/nvidia/deepstream/deepstream-$(NVDS_VERSION)/bin/

ifeq ($(TARGET_DEVICE),aarch64)
  CFLAGS:= -DPLATFORM_TEGRA
endif

SRCS:= $(wildcard *.c)
SRCS+= $(wildcard ../../apps-common/src/*.c)

INCS:= $(wildcard *.h)

PKGS:= gstreamer-1.0 gstreamer-video-1.0 x11

OBJS:= $(SRCS:.c=.o)

CFLAGS+= -I../../apps-common/includes -I../../../includes -DDS_VERSION_MINOR=0 -DDS_VERSION_MAJOR=5

LIBS+= -L$(LIB_INSTALL_DIR) -lnvdsgst_meta -lnvds_meta -lnvdsgst_helper -lnvdsgst_smartrecord -lnvds_utils -lm \
       -lgstrtspserver-1.0 -ldl -Wl,-rpath,$(LIB_INSTALL_DIR)

CFLAGS+= `pkg-config --cflags $(PKGS)`

LIBS+= `pkg-config --libs $(PKGS)`

all: $(APP)

%.o: %.c $(INCS) Makefile
    $(CC)  -c -o $@ $(CFLAGS) $<
%.o: %.c $(INCS) Makefile
    $(CC) -g3  -c -o $@ $(CFLAGS) $<

$(APP): $(OBJS) Makefile
    $(CC) -o $(APP) $(OBJS) $(LIBS)
$(DEBUGAPP): $(OBJS) Makefile
    $(CC) -g3 -o $(DEBUGAPP) $(OBJS) $(LIBS)

install: $(APP)
    cp -rv $(APP) $(DEBUGAPP) $(APP_INSTALL_DIR)

clean:
    rm -rf $(OBJS) $(APP) $(DEBUGAPP)

But it doesn't produce deepstream-app-debug. What should I change for both release and debug?