CC = clang
AXL_SOURCES = $(filter-out main.c %_test.c, $(wildcard *.c))
TEST_EXES = $(patsubst %.c,%.exe,$(wildcard *_test.c))
TEST_CFLAGS = -Wall -Wextra -Werror -pedantic -std=c17 -static -Oz -fsigned-char
CFLAGS = $(TEST_CFLAGS) -nostdlib -ffreestanding -fno-builtin
LDFLAGS = -Wl,/SUBSYSTEM:CONSOLE,/ENTRY:_start -fuse-ld=lld
LIBS = -lkernel32
SOURCES = $(AXL_SOURCES) main.c
TARGET = prog.exe

all: clean test $(TARGET)

%_test.exe: %_test.c
	$(CC) $(TEST_CFLAGS) $(AXL_SOURCES) $< -o $@

test: $(TEST_EXES)
	for %%i in ($(TEST_EXES)) do ( \
		echo Running %%i && \
		%%i || exit /b 1 \
	)

$(TARGET): $(SOURCES)
	$(CC) $(CFLAGS) $(SOURCES) -o $(TARGET) $(LDFLAGS) $(LIBS)

clean:
	rm -f $(TARGET)
	rm -f $(TEST_EXES)

.PHONY: all clean test