#  Copyright (c) 2001 Dan Gudmundsson
#  See the file "license.terms" for information on usage and redistribution
#  of this file, and for a DISCLAIMER OF ALL WARRANTIES.
# 
#     $Id: Makefile,v 1.2 2004/10/05 14:10:29 dgud Exp $
#

OS_FLAG = unix

ifeq ($(OS_FLAG), mingw)
include ../win32_conf/mingw_vars.mk
else

  OGLDIR  = ${X11BASE}

# Uncomment these if your opengl header is located in another directory than
# the usual $(OGLDIR)/include/GL/gl.h
#GL_INCLUDE_DIR      = OpenGL
#USE_GL_INCLUDE_DIR  = -DFULL_PATH_TO_GL_INCLUDE_DIR

  GL_LIBS		= -L$(OGLDIR)/lib -lGL -lGLU 
  GL_INCS		= -I$(OGLDIR)/include/$(GL_INCLUDE_DIR)

  SDL_LIBS		= $(shell $(SDL_CONFIG) --libs)
  SDL_INCS		= $(shell $(SDL_CONFIG) --cflags)

  LIBS			= $(GL_LIBS) $(SDL_LIBS) -lm 

  CFLAGS		+= -O2 -funroll-loops -Wall -ffast-math -fpic -fomit-frame-pointer \
			$(USE_GL_INCLUDE_DIR) -DSHM -DPTHREADS $(GL_INCS) $(SDL_INCS) $(ERL_INCS)

  CLINKFLAGS 		=  -fpic -shared  

  SOEXT = so

## The driver part needs erlang includes
  ERL_DIR := $(shell echo 'io:format("~s~n",[code:root_dir()]),halt().' | erl | grep '1>' | sed 's,^[0-9]*> *,,g')
  ERL_INCS = -I$(ERL_DIR)/usr/include

  CC ?= gcc

endif

TARGETDIR = ../priv

GCC_O	= $(CC) -c $(CFLAGS) $(INCS) $(ERLINC) $<

# Files

Helpers		= esdl_wrapper esdl_gen esdl_spec esdl_util \
			esdl_video esdl_events esdl_audio \
			esdl_gl esdl_glu esdl_glext

HelpersObjects	= $(Helpers:%=%.o)

# Targets

target:  $(TARGETDIR)/sdl_driver.$(SOEXT)

clean:  
	rm -f $(HelpersObjects) 
	rm -f ../priv/*.$(SOEXT) ../priv/sdlwrapper *.o
	rm -f *~ erl_crash.dump

%.o: %.c
	$(GCC_O)


$(TARGETDIR)/sdl_driver.$(SOEXT): esdl_driver.c $(HelpersObjects)
	$(CC) $(CFLAGS) $(CLINKFLAGS) $(ERL_INCS) $< $(HelpersObjects) \
		$(LIBS) -o $@