#*********************************************************************
#
#                         (C) 2003- Yumetech
#                         http://javr.j3d.org/
#
# Lowest level common makefile for both native and Java code
# 
# Author: Justin Couch
# Version: $Revision: 1.1.1.1 $
#
#*********************************************************************

#
# Directories for standard stuff
#
include $(PROJECT_ROOT)/make/Makefile.inc	 

NATIVE_DEV_ROOT = $(SRC_DIR)/native

NATIVE_SRC_DIR  = $(NATIVE_DEV_ROOT)
3RDPARTY_DLL_DIR  = $(NATIVE_DEV_ROOT)/dll
DESTINATION   = $(PROJECT_ROOT)/obj
LIB_DESTINATION= $(PROJECT_ROOT)/lib
JNI_HEADER_DIR  = $(JAVA_HOME)/include

#
# Built up tool information
#
CC=gcc
CFLAGS=
INCLUDE_LIST=$(INCLUDE_DIR) $(JNI_HEADER_DIR)

EMPTY =
SPACE = $(EMPTY) $(EMPTY)

IS_WIN32 = $(findstring "CYGWIN",`uname`)

ifdef IS_WIN32
  PATH_SEP=';'
  LIB_SUFFIX=dll
  INCLUDE_LIST+=$(JNI_HEADER_DIR)/win32 /usr/include/win32api
  CFLAGS +=-D_WIN32	-mno-cygwin
  ifdef LIBRARY_3RDPARTY
    3RDPARTY_LIBS = $(patsubst %,$(3RDPARTY_DLL_DIR)/lib%.dll,$(LIBRARY_3RDPARTY))
  endif
else
  PATH_SEP=':'
  LIB_SUFFIX=.so
  INCLUDE_LIST+=$(JNI_HEADER_DIR)/unix
  ifdef LIBRARY_3RDPARTY
    3RDPARTY_LIBS = $(patsubst %,-l%,$(LIBRARY_3RDPARTY))
  endif
endif

INCLUDES=$(subst $(SPACE),$(SPACE)-I, $(INCLUDE_LIST))

#
# Option listing for the various commands
#
CC_OPTIONS = -c -O2 $(INCLUDES) $(CFLAGS)
CC_LINK_OPTIONS = -Wl,--add-stdcall-alias -shared $(CFLAGS)

#
# Build rules.
#

ifdef LIBRARY
	LIB_DIR   = $(DESTINATION)/$(LIBRARY)
	OBJ_FILES = $(SOURCE_FILES:%.c=$(LIB_DIR)/%.o)
	LIB_FILES = $(LIB_DESTINATION)/$(LIBRARY).$(LIB_SUFFIX)
endif

SOURCE_FILES  = $(filter  %.c,$(C_SOURCE))

LIB_LIST_CLEAN = $(patsubst %,$(NATIVE_SRC_DIR)/%/.clean,$(LIBRARY_LIST))
LIB_LIST_BUILD = $(patsubst %,$(NATIVE_SRC_DIR)/%/.build,$(LIBRARY_LIST))


#
# General build rules
#
  
# Rule 0. Applied when make is called without targets.
all: $(LIB_DIR) $(OBJ_FILES) $(LIB_FILES)

crap:
	$(PRINT) 1 $(LIBRARY_3RDPARTY) 2 $(3RDPARTY_LIBS) 3 $(OBJ_FILES)
	
# Rule 1. If the destination dir is missing then create it
$(LIB_DIR) :
	$(PRINT) Missing object dir. Creating $(LIB_DIR)
	$(MAKEDIR) $(LIB_DIR)

# Rule 2. Change ".build" tag to "Makefile", thus call the library makefile 
# which in turn recalls this makefile with target all (rule 10).
%.build : 
	$(PRINT) Building directory $(subst .build,' ',$@)
	$(MAKE) -k -f $(subst .build,Makefile,$@) all

# Rule 3. Call rule 2 for every package
buildall : $(LIB_LIST_BUILD)               
	$(PRINT) Completed native libraries.

#
# Specific dependency build rules
#

# Rule 4. Building a .o object file from a .java file
$(LIB_DIR)/%.o : $(NATIVE_DIR)/$(LIBRARY)/%.c
	$(PRINT) Compiling $*.c
	cd $(LIB_DIR) && $(CC) $(CC_OPTIONS) $< 

# Rule 5. Building a .o file from a .c file. Invokes rule 4.
%.o : $(NATIVE_DIR)/$(LIBRARY)/%.c
	$(PRINT) creating $(LIB_DIR)/$(LIBRARY)
	$(MAKE) -k $(LIB_DIR)/$@

# Rule 6. Building a .dll or .so from .o files.
$(LIB_DESTINATION)/$(LIBRARY).$(LIB_SUFFIX): $(OBJ_FILES)
	$(PRINT) Building $@
	cd $(LIB_DIR) && $(CC) $(CC_LINK_OPTIONS) -o $(LIB_DESTINATION)/$(LIBRARY).$(LIB_SUFFIX) $(3RDPARTY_LIBS) $(OBJ_FILES) 

# 
# Cleanups
#

# Rule 8. Remove all produced files (except javadoc)
cleanall :
	$(DELETE) $(LIB_DIR)/*.o 

# Rule 9. Change ".clean" tag to "Makefile", thus call the package makefile 
# which in turn recalls this makefile with target cleanall (rule 8).
%.clean :
	 $(MAKE) -k -f $(subst .clean,Makefile,$@) cleanall


# Rule 10: Call rule 9 for every package directory
clean : $(LIB_LIST_CLEAN)
	 $(PRINT) Done clean.

# Rule to build everything
complete : clean buildall