EXE ?= asm

CC ?= gcc
AR ?= ar
override CPPFLAGS += -MMD -MP
override CFLAGS += -O2 -fPIC --std=c99 -g -Ideps/ -Isrc/ -Iinclude/ -Wall -Wextra -Wpedantic -Wconversion -Wformat-security -Wshadow -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wnull-dereference -Wfloat-equal -Wundef -Wpointer-arith -Wbad-function-cast -Wlogical-op -Wmissing-braces -Wcast-align -Wstrict-overflow=5 -fwrapv # -ftrapv
override LDFLAGS += -g -static -lcolonq-pit-native -lcolonq-pit -lcolonq-elf

BUILD = build_$(CC)

SRCS := \
  src/library.c \
  src/main.c
OBJECTS := $(SRCS:src/%.c=$(BUILD)/%.o)
LIB := libcolonq-asm.a

CHK_SOURCES ?= $(SRCS)

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

GDBFLAGS ?=

.PHONY: all clean install install-bin install-headers install-lib check-syntax gdb

all: $(EXE) $(LIB)

$(EXE): $(BUILD)/main.o $(LIB)
	$(CC) -o $@ $^ $(LDFLAGS)

$(LIB): $(OBJECTS)
	$(AR) rcs $@ $^

$(BUILD):
	mkdir $(BUILD)/

$(BUILD)/%.o: src/%.c | $(BUILD)
	$(CC) $(CPPFLAGS) $(CFLAGS) -o $@ -c $<

clean:
	-rm $(EXE)
	-rm $(LIB)
	-rm -r $(BUILD)/

tags: $(SRCS)
	@ctags --kinds-all=* --fields=* --extras=* --recurse src/ include/

install: install-bin install-headers install-lib

install-bin: $(EXE)
	mkdir -p $(DESTDIR)$(bindir) $(DESTDIR)$(libdir) $(DESTDIR)$(includedir)
	install $(EXE) $(DESTDIR)$(bindir)/$(EXE)

install-headers:
	mkdir -p $(DESTDIR)$(bindir) $(DESTDIR)$(libdir) $(DESTDIR)$(includedir)
	cp -r include/* $(DESTDIR)$(includedir)

install-lib: $(LIB)
	mkdir -p $(DESTDIR)$(bindir) $(DESTDIR)$(libdir) $(DESTDIR)$(includedir)
	install $(LIB) $(DESTDIR)$(libdir)/$(LIB)

check-syntax: tags
	gcc $(CFLAGS) -fsyntax-only $(CHK_SOURCES)

gdb: $(EXE)
	gdb $(GDBFLAGS) $(EXE)

-include $(BUILD)/main.d
-include $(OBJECTS:.o=.d)