#! /usr/bin/make -f
# libimg Makefile

cflags    := -ffreestanding -nostdlib -I.
header    := libimg.h

# {target,cflags,lib}-{fx,cg} are provided by libimg.conf
include libimg.conf

# Files
src       := $(wildcard src/*.c)
obj-fx    := $(src:src/%=build-fx/%.o)
obj-cg    := $(src:src/%=build-cg/%.o)

# Compiler paths
define compilerpath
ifneq "$(lib-$1)" ""
PREFIX-$1 := $$(shell $(target-$1)-gcc -print-search-dirs | grep install | \
                      sed 's/install: //')
ifeq "$$(PREFIX-$1)" ""
$$(error "Cannot determine $1 compiler install path")
endif
endif
endef

$(eval $(call compilerpath,fx))
$(eval $(call compilerpath,cg))

#
# Rules
#

all: $(lib-fx) $(lib-cg)

all-fx: $(lib-fx)

all-cg: $(lib-cg)

libimg-fx.a: $(obj-fx)
	$(target-fx)-ar rcs $@ $^
libimg-cg.a: $(obj-cg)
	$(target-cg)-ar rcs $@ $^

build-fx/%.c.o: src/%.c | build-fx/
	$(target-fx)-gcc -c $< -o $@ $(cflags) $(cflags-fx) -DFX9860G
build-cg/%.c.o: src/%.c | build-cg/
	$(target-cg)-gcc -c $< -o $@ $(cflags) $(cflags-cg) -DFXCG50

clean:
	@ rm -rf build-fx build-cg
distclean: clean
	@ rm -f $(lib-fx) $(lib-cg)

%/:
	@ mkdir -p $@

#
# Installing
#

install:
	if [[ ! -z $(lib-fx) ]]; then \
	  cp $(lib-fx) $(DESTDIR)$(PREFIX-fx); \
	  cp $(header) $(DESTDIR)$(PREFIX-fx)/include; \
	fi
	if [[ ! -z $(lib-cg) ]]; then \
	  cp $(lib-cg) $(DESTDIR)$(PREFIX-cg); \
	  cp $(header) $(DESTDIR)$(PREFIX-cg)/include; \
	fi

.PRECIOUS: %/
.PHONY: all all-fx all-cg clean distclean install