WINCHECK := $(shell which msys-1.0.dll >/dev/null 2>&1; if [ $$? -eq 0 ]; then echo MSYS; fi)
ifeq ($(strip $(WINCHECK)),)
WINDOWS  := 0
else
WINDOWS  := 1
endif

TARGET   := anaglym
COBJS    := $(patsubst %.c,%.o,$(wildcard *.c))
CXXOBJS  := $(patsubst %.cc,%.o,$(wildcard *.cc))
OBJS     := $(COBJS) $(CXXOBJS)
CDEPS    := $(COBJS:.o=.dep)
CXXDEPS  := $(CXXOBJS:.o=.dep)
DEPS     := $(CDEPS) $(CXXDEPS)

LUAINCLUDE := $(shell which lua-config >/dev/null 2>&1; if [ $$? -eq 0 ]; then lua-config --include; fi)
ifeq ($(strip $(LUAINCLUDE)),)
LUAINCLUDE := -I/usr/include/lua5.1
endif
LUALIBS  := $(shell which lua-config >/dev/null 2>&1; if [ $$? -eq 0 ]; then lua-config --libs; fi)
ifeq ($(strip $(LUALIBS)),)
LUALIBS  := -llua5.1
endif

SDLINCLUDE := $(shell sdl-config --cflags)
SDLLIBS    := $(shell sdl-config --libs)

ODEINCLUDE := $(shell ode-config --cflags)
ODELIBS    := $(shell ode-config --libs)

ifeq ($(WINDOWS),1)
GLLIBS      := -lopengl32 -lglu32
WINDOWSLIBS := -lmingw32
TARGET      := $(TARGET).exe
else
GLLIBS     := -lGL -lGLU
endif

export CFLAGS   := $(LUAINCLUDE) $(SDLINCLUDE) $(ODEINCLUDE) -O2 -Wall
export CXXFLAGS := $(CFLAGS)
export LDFLAGS  := $(LUALIBS) $(ODELIBS) $(GLLIBS) $(WINDOWSLIBS) $(SDLLIBS)

ifdef DEBUG
	CFLAGS += -g
	CXXFLAGS += -g
endif

all: $(TARGET)

$(TARGET): $(OBJS) wfobj/WFObj.o OdeWorld/OdeWorld.o
	$(CXX) -o $@ $^ $(LDFLAGS)

.PHONY: wfobj/WFObj.o
wfobj/WFObj.o:
	$(MAKE) -C wfobj

.PHONY: OdeWorld/OdeWorld.o
OdeWorld/OdeWorld.o:
	$(MAKE) -C OdeWorld

%.o: %.c
	$(CC) -c -o $@ $(CPPFLAGS) $(CFLAGS) $<

%.o: %.cc
	$(CXX) -c -o $@ $(CPPFLAGS) $(CXXFLAGS) $<

# Make dependency files
%.dep: %.c
	@set -e; rm -f $@; \
	  $(CC) -MM $(CPPFLAGS) $< | sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' > $@

%.dep: %.cc
	@set -e; rm -f $@; \
	  $(CXX) -MM $(CPPFLAGS) $< | sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' > $@

.PHONY: dist
dist: all
	-mkdir -p $@
	cp -a lib $@
	# I didn't want to rely on 'rsync' being available to exclude .svn folders
	# or svn being available to properly export directories...
	find $@ -depth -name '.svn' -exec rm -rf {} ';'
	cp $(TARGET) $@
ifeq ($(WINDOWS),1)
	cp -a $(shell which SDL.dll) $@
	cp -a $(shell which SDL_image.dll) $@
	cp -a $(shell which ODE.dll) $@
endif

clean:
	-rm -f *.o *.dep *~ $(TARGET) dist stdout.txt stderr.txt

-include $(DEPS)