# Debug flags and release flags for GCC
ifeq ($(BUILD),debug)   
CFLAGS += -O0 -g
BUILD_DIR = build/debug
else
CFLAGS += -O2 -s -DNDEBUG
BUILD_DIR = build/release
endif

# Get the system architecture if not specified
ifeq ($(ARCH),)
	ARCH = $(shell uname -m)
endif

VALGRIND_ARGS += --leak-check=full --track-origins=yes --show-leak-kinds=all
BINARY_NAME = demo

$(BUILD_DIR)/$(ARCH)/$(BINARY_NAME): obj/kernels.o obj/solve.o obj/gp.o obj/main.o
	gcc -std=c99 $(CFLAGS) obj/kernels.o obj/gp.o obj/solve.o obj/main.o\
		-lgsl -lopenblas -lm -o $(BUILD_DIR)/$(ARCH)/$(BINARY_NAME).$(ARCH)
obj/$(BINARY_NAME).o: $(BINARY_NAME).c
	gcc -Wall -c main.c -o obj/main.o
obj/kernels.o: src/kernels.c
	gcc -Wall -c src/kernels.c -o obj/kernels.o
obj/solve.o: src/solve.c
	gcc -Wall -c src/solve.c -o obj/solve.o
obj/gp.o: src/gp.c
	gcc -Wall -c src/gp.c -o obj/gp.o

.PHONY : debug
debug:
	$(MAKE) "BUILD=debug" && valgrind $(VALGRIND_ARGS) build/debug/main.x86_64

.PHONY : clean
clean:
	rm obj/*.o