PROJDIR := ../../..

SOURCEDIR := $(PROJDIR)/src
BUILDDIR := $(PROJDIR)/build/linux_$(DIST)

TARGET = $(PROJDIR)/dist/linux_$(DIST)/labyrinth

DIRS = common common/spc common/wall platforms/linux data_conversion
SOURCEDIRS = $(foreach dir, $(DIRS), $(addprefix $(SOURCEDIR)/, $(dir)))
TARGETDIRS = $(foreach dir, $(DIRS), $(addprefix $(BUILDDIR)/, $(dir)))

INCLUDES = $(foreach dir, $(SOURCEDIRS), $(addprefix -I, $(dir)))

VPATH = $(SOURCEDIRS)

SOURCES = $(foreach dir,$(SOURCEDIRS),$(wildcard $(dir)/*.c))

OBJS := $(subst $(SOURCEDIR),$(BUILDDIR),$(SOURCES:.c=.o))

DEPS = $(OBJS:.o=.d)

CC = gcc
CFLAGS = -fpack-struct

define generateRules
$(1)/%.o: %.c
	@echo -n "Compiling "
	@echo $$@... | cut -d/ -f6-
	@$(CC) -g -fpack-struct -Wall -march=$(ARCH) $(AFLAGS) -c $$(INCLUDES) -D LARGER_SYSTEM -o $$@ $$< -MMD
endef

.PHONY: all clean distclean directories clean-plat distclean-plat tgz

all:
	@make --no-print-directory directories DIST=x86-64 CC=gcc ARCH=x86-64 x86-64
#	@make --no-print-directory directories DIST=x86-32 CC=i686-linux-gnu-gcc ARCH=i386 AFLAGS="-m32" x86-32
#	@make --no-print-directory directories DIST=arm64 CC=aarch64-linux-gnu-gcc ARCH=armv8-a arm64
#	@make --no-print-directory directories DIST=armhf CC=arm-linux-gnueabihf-gcc ARCH=armv7+fp armhf
#	@make --no-print-directory directories DIST=armel CC=arm-linux-gnueabi-gcc ARCH=armv6 armel

$(DIST):
	@rm -rf $(PROJDIR)/dist/linux_$(DIST)
	@echo
	@echo Building for Linux $(DIST)...
	@make --no-print-directory directories $(TARGET)
	@echo Copying master data...
	@cd $(PROJDIR)/master_data && cp -rf * ../dist/linux_$(DIST)

$(TARGET): $(OBJS)
	@echo Linking Linux $(DIST)...
	@$(CC) -g -fpack-struct -lncurses -march=$(ARCH) $(AFLAGS) $(OBJS) -o $(TARGET)

-include $(DEPS)

$(foreach targetdir, $(TARGETDIRS), $(eval $(call generateRules, $(targetdir))))

directories: 
	@mkdir -p $(TARGETDIRS)
	@mkdir -p `dirname $(TARGET)`

clean:
	@make --no-print-directory ARCH=i386 clean-plat
	@make --no-print-directory ARCH=x86-64 clean-plat
	
distclean:
	@make --no-print-directory ARCH=i386 distclean-plat
	@make --no-print-directory ARCH=x86-64 distclean-plat

clean-plat:
	@rm -rf $(BUILDDIR)

distclean-plat: clean-plat
	@rm -rf `dirname $(TARGET)`

tgz: all
	@echo
	@echo -n "Creating distribution archives: "
	@cd $(PROJDIR)/dist && \
		REV=`svn info http://svn.ocfco.net/public/DND/ -r 'HEAD' | grep "Last Changed Rev" | egrep -o "[0-9]+"` && \
		for i in x86-64 ; do \
			echo -n "$$i "; \
			tar -czf Labyrinth-unstable$$REV-linux_$$i.tar.gz linux_$$i; \
		done; \
		echo