PACKAGE = PackageName

#flags needed for the compilation
ROOTCFLAGS := $(shell root-config --cflags)
ROOTLIBS := $(shell root-config --libs) 
LINKLIBSIN = -L$(shell root-config --libdir) -lCore -lRIO -lNet -lHist -lGraf -lGraf3d -lGpad -lTree -lRint -lPostscript -lMatrix -lPhysics -lGui -lRooStats -lRooFit -lHistFactory -lXMLParser -pthread -lRooFitCore -lm -ldl -lFoam -lMinuit -Llib 
INCLUDES += -IPackage -I$(shell root-config --incdir) 

CXX = g++
LD = g++

CXXFLAGS      = -O2 -Wall -fPIC -std=c++17
LDFLAGS       = -O2
SOFLAGS       = -shared

DICTHEAD  = $(PACKAGE)_Dict.h
DICTFILE  = $(PACKAGE)_Dict.cxx
DICTOBJ   = $(PACKAGE)_Dict.o
DICTLDEF  = Root/LinkDef.h

LIBFILE = lib/lib$(PACKAGE).so
ROOTMAPFILE = lib/lib$(PACKAGE).rootmap

CPPLIST = $(wildcard Root/*.cxx)
# MACROLIST = $(wildcard util/*.cxx)
HLIST   = $(wildcard Package/*.h)

OBJDIR = obj
OLIST = $(patsubst %.cxx,%.o,$(CPPLIST))
OBJLIST = $(addprefix $(OBJDIR)/,$(notdir $(OLIST)))

# BINLIST = $(patsubst %.cxx,%,$(MACROLIST))

.PHONY: all clean

all: $(LIBFILE)

# Implicit rule to compile all classes
$(OBJDIR)/%.o : Root/%.cxx
	@echo "Compiling $<"
	@mkdir -p $(OBJDIR)
	@$(CXX) $(CXXFLAGS) -g -c $< -o $(OBJDIR)/$(notdir $@) $(INCLUDES)

# ROOT6 rule to make the dictionary
$(DICTFILE):  $(HLIST) $(DICTLDEF)
	@echo "Generating dictionary $@"
	@$(ROOTSYS)/bin/rootcling -f $(DICTFILE) -s $(LIBFILE) -rml lib$(PACKAGE).so -rmf $(ROOTMAPFILE) -c $(INCLUDES) $^

$(OBJDIR)/$(DICTOBJ): $(DICTFILE)
	@echo "Compiling $<"
	@mkdir -p $(OBJDIR)
	@$(CXX) $(CXXFLAGS) -g -c $(INCLUDES) -o $@ $<

# Rule to combine objects into a unix shared library
$(LIBFILE): $(OBJLIST) $(OBJDIR)/$(DICTOBJ)
	@echo "Making shared library: $(LIBFILE)"
	@rm -f $(LIBFILE)
	@$(LD) $(CXXFLAGS) $(SOFLAGS) $(OBJLIST) $(OBJDIR)/$(DICTOBJ) -o $(LIBFILE) $(LINKLIBSIN)

clean:
	@echo "Cleaning lib/ and obj/"
	@rm -rf lib/* obj/*