ifeq ($(OS),Windows_NT)
	ifeq ($(shell uname -s),) # not in a bash-like shell
		CLEANUP = del /F /Q
		MKDIR = mkdir
	else # in a bash-like shell, like msys
		CLEANUP = rm -f
		MKDIR = mkdir -p
	endif
		TARGET_EXTENSION=.exe
else
	CLEANUP = rm -f
	MKDIR = mkdir -p
	TARGET_EXTENSION=out
endif

.PHONY: cleandep
.PHONY: clean

PATHS = src/
PATHL = lib/
PATHB = build/
PATHD = build/depends/
PATHO = build/objs/

BUILD_PATHS = $(PATHB) $(PATHD) $(PATHO) $(PATHL)

CROSSCOMPILE = arm-linux-gnueabihf-gcc -c
CROSSLINK = arm-linux-gnueabihf-gcc

DEPEND = gcc -MM -MG -MF

CROSSFLAGS = -I. -I$(PATHS) -I$(PATHL) -D_POSIX_C_SOURCE
CROSSFLAGS += -std=c99
CROSSFLAGS += -march=armv6
CROSSFLAGS += -mfloat-abi=hard
CROSSFLAGS += -mfpu=vfp
CROSSFLAGS += -Wall
CROSSFLAGS += -Wextra
CROSSFLAGS += -Wpointer-arith
CROSSFLAGS += -Wcast-align
# CROSSFLAGS += -Wwrite-strings
CROSSFLAGS += -Wswitch-default
CROSSFLAGS += -Wunreachable-code
CROSSFLAGS += -Winit-self
CROSSFLAGS += -Wmissing-field-initializers
CROSSFLAGS += -Wno-unknown-pragmas
CROSSFLAGS += -Wstrict-prototypes
CROSSFLAGS += -Wundef
CROSSFLAGS += -Wold-style-definition

RELEASE = $(PATHB)zaqar.$(TARGET_EXTENSION)
RELEASEDEPS = $(patsubst $(PATHL)%.c,$(PATHO)%.o, $(wildcard $(PATHL)*.c))

release: $(RELEASEDEPS) $(RELEASE)

$(PATHB)zaqar.$(TARGET_EXTENSION):: $(PATHO)zaqar.o $(RELEASEDEPS)
	$(CROSSLINK) -o $@ $^

$(PATHO)zaqar.o:: $(PATHS)zaqar.c
	$(CROSSCOMPILE) $(CROSSFLAGS) $< -o $@

$(PATHO)%.o:: $(PATHL)%.c
	$(CROSSCOMPILE) $(CROSSFLAGS) $< -o $@

$(PATHD)%.d:: $(PATHT)%.c
	$(DEPEND) $@ $<

$(PATHB):
	$(MKDIR) $(PATHB)

$(PATHD):
	$(MKDIR) $(PATHD)

$(PATHO):
	$(MKDIR) $(PATHO)

clean:
	$(CLEANUP) $(PATHO)*.o
	$(CLEANUP) $(PATHB)*.$(TARGET_EXTENSION)
	$(CLEANUP) $(PATHTR)*.c

cleandep:
	$(CLEANUP) $(PATHD)*.d

.PRECIOUS: $(PATHD)%.d
.PRECIOUS: $(PATHO)%.o