FRAMEWORK = -framework AGL -framework Cocoa -framework OpenGL
CFLAGS    = -O2 -Iglfw/include -Iglfw/lib -Iglfw/lib/cocoa
SRC_DIR   = glfw/lib/cocoa
BUILD_DIR = build

OBJ_C_SRC = $(shell find $(SRC_DIR) -name "*.m")
C_SRC     = $(shell find $(SRC_DIR) -name "*.c")
GLFW_SRC  = $(shell find glfw/lib -depth 1 -name "*.c")
SRC       = $(OBJ_C_SRC) $(C_SRC)
OBJS      = $(addprefix $(BUILD_DIR)/, $(OBJ_C_SRC:.m=.o) $(C_SRC:.c=.o))

all: $(BUILD_DIR)/libglfw.a $(BUILD_DIR)/libglfw.dylib

$(BUILD_DIR)/libglfw.dylib: $(OBJS)
	$(CC) -dynamiclib $(CFLAGS) -o $@ $(OBJS) $(GLFW_SRC) $(FRAMEWORK)

$(BUILD_DIR)/libglfw.a: $(OBJS)
	ar -r -s $@ $(OBJS)

$(BUILD_DIR)/$(SRC_DIR)/.build-tag:
	mkdir -p $(BUILD_DIR)/$(SRC_DIR)
	touch $@

$(OBJS): $(BUILD_DIR)/$(SRC_DIR)/.build-tag

$(BUILD_DIR)/%.o : %.c
	$(CC) -c $(CFLAGS) $< -o $@
$(BUILD_DIR)/%.o : %.m
	$(CC) -c $(CFLAGS) $< -o $@

.PHONY: clean
clean:
	$(RM) -rf $(BUILD_DIR)