#  Copyright (c) 2005-2008 Andre Merzky (andre@merzky.net)
# 
#  Distributed under the Boost Software License, Version 1.0. (See accompanying
#  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#
#  Now, this is probably not the right way to do it (tm), but it saves us fom
#  a major restructuring of the source tree, again.  
#
#  saga-lite is a shared library which contains
#    - the saga engine
#    - all available packages
#    - all available adaptors
#  that whole bunch is linked into one giant shared lib.  So, we use the static
#  engine lib, the static package libs, etc.
#
#  Actually, we do _not_ really use the engine lib, as we want to replace
#  engine.o with a version which knows about the available adaptors (which are
#  only available after the engine built, as the dynamic adaptors link against
#  the engine itself: thats the sole reason for this hack in the first place).
#
#  So, we fetch the engine.cpp source, recompile it with a special define which
#  uses the now available dynamic adaptor list (which gets created by this very
#  makefile on the fly, btw), then link this, all other engine objects, the packges,
#  and the adaptors into our libsaga_lite.

SAGA_ROOT        = ../

ADAPTOR_DATA_IN  = static_adaptor_data.hpp.in
ADAPTOR_DATA     = dynamic_adaptor_data.hpp
ADAPTOR_LIST     = dynamic_adaptor.list

CSAD_SRC         = create_static_adaptor_data.cpp
CSAD_OBJ         = create_static_adaptor_data.o
CSAD_BIN         = create_static_adaptor_data

MY_ENGINE_SRC    = engine.cpp
MY_ENGINE_PRE    = engine.ii
MY_ENGINE_OBJ    = engine.o

LITE_SRC         = $(wildcard $(SAGA_ROOT)/saga/impl/engine/*.cpp)
SAGA_LIB_OBJ    := $(filter-out $(SAGA_ROOT)/saga/impl/engine/engine.o,$(LITE_SRC:%.cpp=%.o))
SAGA_LIB_OBJ    += $(MY_ENGINE_OBJ)

SAGA_OBJ         = $(CSAD_OBJ)

ENGINE_ORIG_SRC  = $(SAGA_ROOT)/saga/impl/engine/engine.cpp

SAGA_LIB         = saga-lite

SAGA_USE_STATIC_LIBS = yes

USE_LIBS = 1

ifndef USE_LIBS
  SAGA_ADD_LIB_OBJ += $(wildcard $(SAGA_ROOT)/saga/saga/packages/*/adaptors/*.o)
  SAGA_ADD_LIB_OBJ += $(wildcard $(SAGA_ROOT)/saga/saga/packages/*/*.o)
  SAGA_ADD_LIB_OBJ += $(wildcard $(SAGA_ROOT)/saga/impl/packages/*/*.o)
  SAGA_ADD_LIB_OBJ += $(wildcard $(SAGA_ROOT)/adaptors/*/*/*.o)
# SAGA_ADD_LIB_OBJ := $(filter-out %task_get_result.o,$(SAGA_S_LIBS))
endif


include $(SAGA_ROOT)/saga/impl/engine/engine.objs.mk
include $(SAGA_ROOT)/make/saga.mk


# get all external adaptor dependencies
SAGA_ADD_MAKE_INCLUDE = $(wildcard $(SAGA_ROOT)/adaptors/*/config/saga.config.*.c.mk)

ifneq "x$(SAGA_ADD_MAKE_INCLUDE)" "x"
  include $(SAGA_ADD_MAKE_INCLUDE)
  $(warning SAGA_ADD_MAKE_INCLUDE: $(SAGA_LDFLAGS_EXT))
endif


# only clean in this directory
SAGA_CLEAN_TGT   = $(SAGA_LIBNAME) $(SAGA_ARCNAME) $(MY_ENGINE_OBJ) $(CSAD_OBJ) $(CSAD_BIN) $(ADAPTOR_DATA)
 
# needed by the engine rebuild
SAGA_CPPDEFS    += -DBUILD_SAGA_LITE=1 -DSAGA_HAVE_DYNAMIC_ADAPTOR_DATA=1
SAGA_CPPINCS    += -I$(SAGA_PWD)

# add packages and adaptors

ifdef USE_LIBS
  SAGA_S_LIBS    += $(wildcard $(SAGA_ROOT)/saga/impl/packages/*/libsaga_package_*.a)
  SAGA_S_LIBS    += $(wildcard $(SAGA_ROOT)/adaptors/*/*/libsaga_adaptor*.a)
endif

clean::
	@$(RM) $(ADAPTOR_DATA) $(CSAD_BIN) engine.cpp

all:: lite

$(CSAD_BIN): $(CSAD_OBJ)
	@$(ECHO) "      binlinking $(CSAD_BIN)"
	@$(SAGA_LD) -o $@ $<


$(ADAPTOR_DATA): $(CSAD_BIN)
	@$(ECHO) "      creating dynamic adaptor data"
	@$(SAGA_ROOT)/config/saga-run.sh $(SAGA_PWD)/$(CSAD_BIN) \
                                   $(SAGA_ROOT)/config/$(ADAPTOR_LIST) \
                                   $(SAGA_ROOT)/lite/$(ADAPTOR_DATA_IN) \
                                   $(SAGA_ROOT)/lite/$(ADAPTOR_DATA)

$(MY_ENGINE_SRC): $(ENGINE_ORIG_SRC)
	@$(ECHO) "      copying engine sources"
	@$(CP) $(ENGINE_ORIG_SRC) $(SAGA_PWD)

$(MY_ENGINE_PRE): $(ADAPTOR_DATA)

.PHONY: lite
lite: $(SAGA_ARC_NAME)

$(SAGA_ARC_NAME):: $(MY_ENGINE_OBJ) 
	@$(ECHO) "      building saga-lite : $(SAGA_LIB_OBJ)"
	@$(ECHO) "      building saga-lite : $(SAGA_LDFLAGS)"

p:
	@echo MY_ENGINE_SRC: $(ENGINE_ORIG_SRC)