#! /usr/bin/make -f

# Require the configuration file if we're not cleaning
ifeq "$(filter clean distclean,$(MAKECMDGOALS))" ""
ifeq ($(wildcard Makefile.cfg),)
$(error "Makefile.cfg is missing. Did you ./configure ?")
endif
endif

include Makefile.cfg
include config/$(PLATFORM).cfg

parser := src/TeX.y
src    := $(wildcard src/*.c) $(wildcard src/platform/$(PLATFORM).c)
obj    := $(src:src/%.c=build/%.c.o) $(parser:src/%.y=build/%.tab.c.o)

cflags := -Wall -Wextra -std=c11 -I include -D_GNU_SOURCE $(CFLAGS)
dflags  = -MMD -MT $@ -MF $(@:.o=.d) -MP
bflags := -L C

#
#  Building
#

all: $(TARGET)

TeX-SDL TeX-cli: $(obj)
	$(CC) $^ -o $@ $(cflags) $(LDFLAGS)

libTeX-fx.a libTeX-cg.a: $(obj)
	$(AR) rcs $@ $^

build/%.c.o: src/%.c Makefile.cfg
	@ mkdir -p $(dir $@)
	$(CC) -c $< -o $@ $(dflags) $(cflags)
build/%.tab.c.o: build/%.tab.c
	@ mkdir -p $(dir $@)
	$(CC) -c $< -o $@ $(dflags) $(cflags)

build/%.tab.c: src/%.y Makefile.cfg
	@ mkdir -p $(dir $@)
	bison $< -o $@ $(bflags)

#
#  Dependency management
#


.PRECIOUS: build/%.tab.c

.PRECIOUS: build/%.d

build/%.d: ;

include $(wildcard build/*.d)

#
#  Install
#

ifeq "$(PLATFORM)" "fx9860g"
install: $(TARGET)
	install -d $(PREFIX)
	install $(TARGET) -m 644 $(PREFIX)
	cp -r include/TeX $(PREFIX)/include

uninstall: $(TARGET)
	rm -f $(PREFIX)/$(TARGET)
	rm -rf $(PREFIX)/include/TeX
endif

ifeq "$(PLATFORM)" "fxcg50"
install: $(TARGET)
	install -d $(PREFIX)
	install $(TARGET) -m 644 $(PREFIX)
	cp -r include/TeX $(PREFIX)/include

uninstall: $(TARGET)
	rm -f $(PREFIX)/$(TARGET)
	rm -rf $(PREFIX)/include/TeX
endif

#
#  Cleaning
#

clean:
	rm -rf build
distclean: clean
	rm -f Makefile.cfg
	rm -f TeX-cli TeX-SDL libTeX-fx.a libTeX-cg.a

.PHONY: all clean distclean install
.SUFFIXES: