libvieter/Makefile

81 lines
1.9 KiB
Makefile

# https://spin.atomicobject.com/2016/08/26/makefile-c-projects/ was a great
# base for this Makefile
LIB_FILENAME ?= libvieter.a
BUILD_DIR ?= build
SRC_DIR ?= src
TEST_DIR ?= test
INC_DIRS ?= include
SRCS != find '$(SRC_DIR)' -iname '*.c'
SRCS_H != find $(INC_DIRS) -iname '*.h'
SRCS_TEST != find '$(TEST_DIR)' -iname '*.c'
OBJS := $(SRCS:%=$(BUILD_DIR)/%.o)
OBJS_TEST := $(SRCS_TEST:%=$(BUILD_DIR)/%.o)
DEPS := $(SRCS:%=$(BUILD_DIR)/%.d) $(SRCS_TEST:%=$(BUILD_DIR)/%.d)
BINS_TEST := $(OBJS_TEST:%.c.o=%)
INC_FLAGS := $(addprefix -I,$(INC_DIRS))
# -MMD: generate a .d file for every source file. This file can be imported by
# make and makes make aware that a header file has been changed, ensuring an
# object file is also recompiled if only a header is changed.
# -MP: generate a dummy target for every header file (according to the docs it
# prevents some errors when removing header files)
CFLAGS ?= -MMD -MP -Wall -Wextra
CFLAGS += $(INC_FLAGS)
.PHONY: all
all: vieter
# =====COMPILATION=====
.PHONY: vieter
vieter: $(BUILD_DIR)/$(LIB_FILENAME)
$(BUILD_DIR)/$(LIB_FILENAME): $(OBJS)
ar -rcs $@ $(OBJS)
$(BUILD_DIR)/$(SRC_DIR)/%.c.o: $(SRC_DIR)/%.c
mkdir -p $(dir $@)
$(CC) $(CFLAGS) -c $< -o $@
# =====TESTING=====
.PHONY: test
test: build-test
@ $(foreach bin,$(BINS_TEST),./$(bin);)
.PHONY: build-test
build-test: $(BINS_TEST)
# For simplicity, we link every object file to each of the test files. This
# might be changed later if this starts to become too slow.
$(BINS_TEST): %: %.c.o $(OBJS)
$(CC) $^ -o $@
# Each test includes the test directory, which contains the acutest header file
$(BUILD_DIR)/$(TEST_DIR)/%.c.o: $(TEST_DIR)/%.c
mkdir -p $(dir $@)
$(CC) $(CFLAGS) -I$(TEST_DIR) -c $< -o $@
# =====MAINTENANCE=====
.PHONY: lint
lint:
clang-format -n --Werror $(SRCS) $(SRCS_H)
.PHONY: fmt
fmt:
clang-format -i $(SRCS) $(SRCS_H)
.PHONY: clean
clean:
rm -rf $(BUILD_DIR)
# Make make aware of the .d files
-include $(DEPS)