There may have some error in the makefile

[reee]

TARGET = libcedrus.so.1
SRC = cedrus.c cedrus_mem_ve.c cedrus_mem_ion.c
INC = cedrus.h cedrus_regs.h
CFLAGS ?= -Wall -Wextra -O3
LDFLAGS ?=
LIBS = -lpthread
CC ?= gcc

prefix ?= usr/local
libdir ?= $(prefix)/lib
includedir ?= $(prefix)/include

ifeq ($(USE_UMP),1)
SRC += cedrus_mem_ump.c
CFLAGS += -DUSE_UMP
LIBS += -lUMP
endif

DEP_CFLAGS = -MD -MP -MQ $@
LIB_CFLAGS = -fpic -fvisibility=hidden
LIB_LDFLAGS = -shared -Wl,-soname,$(TARGET)

OBJ = $(addsuffix .o,$(basename $(SRC)))
DEP = $(addsuffix .d,$(basename $(SRC)))

.PHONY: clean all install uninstall

all: $(TARGET)
$(TARGET): $(OBJ)
$(CC) $(LIB_LDFLAGS) $(LDFLAGS) $(OBJ) $(LIBS) -o $@

clean:
rm -f $(OBJ)
rm -f $(DEP)
rm -f $(TARGET)

install: $(TARGET) $(INC)
install -D $(TARGET) $(DESTDIR)/$(libdir)/$(TARGET)
ln -sf $(TARGET) $(DESTDIR)/$(libdir)/$(basename $(TARGET))
install -D -t $(DESTDIR)/$(includedir)/cedrus/ $(INC)

uninstall:
rm -f $(DESTDIR)/$(libdir)/$(basename $(TARGET))
rm -f $(DESTDIR)/$(libdir)/$(TARGET)
rm -rf $(DESTDIR)/$(includedir)/cedrus

%.o: %.c
$(CC) $(DEP_CFLAGS) $(LIB_CFLAGS) $(CFLAGS) -c $< -o $@

include $(wildcard $(DEP))

1. There is no definition for $(DESTDIR) so is it not needed? the path actually is '//usr/local/lib/libcedrus.so.1' on my cubietruck with ubuntu desktop from armbian
2. We may need create the dir /usr/local/include/cedrus/ before we could copy file to it?

[jemk]

1. You have to define DESTDIR if you need it, see https://www.gnu.org/prep/standards/html_node/DESTDIR.html
2. install -D should take care of creating the directories according to its manpage. But it looks like this doesn't apply to older versions...