Makefile

DEBUG = 0
CFLAGS = -MMD -std=c11 -I./include/readtrmin/

ifeq ($(DEBUG), 1)
	CFLAGS += -g -Wall -Werror -Wextra -DDEBUG
else
	CFLAGS += -DNDEBUG -O2
endif

LDFLAGS = -shared

ifeq ($(PREFIX),)
	PREFIX := /usr/local
endif

BUILD_DIR = build
SRC_DIR = src

LIB_SRCS = $(SRC_DIR)/readtrmin.c \
		   $(SRC_DIR)/str_util.c
LIB_HEADER = include

LIB_OBJS = $(patsubst $(SRC_DIR)/%.c, $(BUILD_DIR)/%.o, $(LIB_SRCS))
LIB_DEPS = $(patsubst %.o, %.d, $(LIB_OBJS))

TARGET = readtrmin
LIB_NAME = lib$(TARGET).so
LIB_FILE = $(BUILD_DIR)/$(LIB_NAME)

LIB_INSTALL_PATH = $(PREFIX)/lib
LIB_HEADER_PATH = $(PREFIX)/include/readtrmin

all: readtrmin install

.PHONY: clean_all
clean_all: clean

.PHONY: readtrmin
readtrmin: make_build_dir $(LIB_FILE)

.PHONY: make_build_dir
make_build_dir:
	@if [ ! -d $(BUILD_DIR) ]; then mkdir $(BUILD_DIR); fi

$(LIB_FILE): $(LIB_OBJS)
	$(CC) $(LDFLAGS) -fPIC -o $@ $^

$(BUILD_DIR)/%.o: $(SRC_DIR)/%.c
	$(CC) $(CFLAGS) -c $< -o $@

-include ($(LIB_DEPS))

.PHONY: install
install:
	@if [ ! -f $(LIB_FILE) ]; then \
		echo "installation failed"; \
		echo "$(LIB_NAME) not found"; \
		echo "run 'make readtrmin' to build it"; \
	else \
		cp $(LIB_FILE) $(LIB_INSTALL_PATH); \
	fi

	@if [ ! -d $(LIB_HEADERL_PATH) ]; then \
		mkdir $(LIB_HEADER_PATH); \
	fi

	@cp -r $(LIB_HEADER)/readtrmin $(LIB_HEADER_PATH)
	@echo "installation successful"; \

.PHONY: uninstall
uninstall:
	$(RM) $(LIB_INSTALL_PATH)/$(LIB_NAME)
	$(RM) -r $(LIB_HEADER_PATH)

.PHONY: clean
clean:
	$(RM) $(LIB_OBJS) $(LIB_DEPS) $(LIB_FILE)

#test
.PHONY: test
test:
	$(MAKE) -C test

.PHONY: test_clean
test_clean:
	$(MAKE) clean -C test