CXX=g++
CPPFLAGS=-c -Wall -std=c++11 -I../include
LDFLAGS=
OBJDIR=obj
LIBDIR=../lib

SOURCES=my_lib.cpp
# //OBJECTS=$(OBJDIR)$(SOURCES:.cpp=.o)
OBJECTS=$(foreach bname, $(basename $(SOURCES)), $(OBJDIR)/$(bname).o)
LIB=$(LIBDIR)/libmy_lib.a

all: $(LIB)

$(OBJDIR):
	mkdir $@

$(LIBDIR):
	mkdir $@

$(LIB): $(OBJECTS) | $(LIBDIR)
	ar -rcs $@ $<

$(OBJDIR)/%.o: %.cpp | $(OBJDIR)
	$(CXX) $(CPPFLAGS) $< -o $@

clean:
	rm -f $(OBJECTS) $(LIB)