Makefile

# Disable built-in rules and variables
MAKEFLAGS += --no-builtin-rules
MAKEFLAGS += --no-builtin-variables

# flags
test: CFLAGS := -ggdb -std=c11 -pipe -Wall -Wextra -Werror=implicit-function-declaration	\
		-Wformat -Werror=format-security	\
		-fno-omit-frame-pointer	\
		-fsanitize=address -fsanitize=leak -fsanitize=undefined	\
		-fsanitize-address-use-after-scope

flto-test: CFLAGS := -s -O2 -pipe -std=c11 -Wall -Wextra -flto -march=native -mtune=native

tools: CFLAGS := -s -O2 -pipe -std=c11 -Wall -Wextra

# str library source files
SRC := str.c str.h str_test.c

# compiler
CC := gcc
#CC := clang-10

# all
.PHONY: all
all: tools test flto-test

.PHONY: clean
clean: clean-test clean-tools

# test
test: $(SRC)
	$(CC) $(CFLAGS) -o $@ $(filter %.c,$^)
	./$@

flto-test: $(SRC)
	$(CC) $(CFLAGS) -o $@ $(filter %.c,$^)
	./$@

.PHONY: clean-test
clean-test:
	rm -f test flto-test

# tools
GEN_CHAR_CLASS := tools/gen-char-class

.PHONY: tools
tools: $(GEN_CHAR_CLASS)

# gen-char-class
$(GEN_CHAR_CLASS): tools/gen_char_class.c
	$(CC) $(CFLAGS) -o $@ $(filter %.c,$^)

.PHONY: clean-tools
clean-tools:
	rm -f $(GEN_CHAR_CLASS)