Rockbox Utility: build chinachippatcher as library.

Update the chinachip Makefile based on the mkamsboot one, build and link as
library for Rockbox Utility.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31117 a1c6a512-1295-4272-9138-f99709370657
diff --git a/rbutil/chinachippatcher/Makefile b/rbutil/chinachippatcher/Makefile
index fbdb30f..af1e32a 100644
--- a/rbutil/chinachippatcher/Makefile
+++ b/rbutil/chinachippatcher/Makefile
@@ -1,10 +1,96 @@
-CFLAGS=-g -Wall -DSTANDALONE
-CC=gcc
+#             __________               __   ___.
+#   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+#   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+#   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+#   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+#                     \/            \/     \/    \/            \/
 
-all: chinachip
+#change for releases
+TARGET_DIR ?= $(shell pwd)/
+CFLAGS=-Wall -g
 
-chinachip: chinachip.c main.c
-	$(CC) $(CFLAGS) -o $@ $^
+ifndef V
+SILENT = @
+endif
+
+ifeq ($(findstring CYGWIN,$(shell uname)),CYGWIN)
+OUTPUT=chinachip.exe
+CFLAGS+=-mno-cygwin
+else
+ifeq ($(findstring MINGW,$(shell uname)),MINGW)
+OUTPUT=chinachip.exe
+else
+ifeq ($(findstring mingw,$(CC)),mingw)
+OUTPUT=chinachip.exe
+else
+OUTPUT=chinachip
+endif
+endif
+endif
+
+ifdef RBARCH
+CFLAGS += -arch $(RBARCH)
+OBJDIR = $(TARGET_DIR)build/$(RBARCH)/
+else
+OBJDIR = $(TARGET_DIR)build/
+endif
+
+
+all: $(OUTPUT)
+
+# inputs
+LIBSOURCES := chinachip.c
+SOURCES := $(LIBSOURCES) main.c
+OBJS := $(patsubst %.c,%.o,$(addprefix $(OBJDIR),$(SOURCES)))
+LIBOBJS := $(patsubst %.c,%.o,$(addprefix $(OBJDIR),$(LIBSOURCES)))
+EXTRADEPS :=
+
+$(OBJDIR)%.o: %.c
+	@echo CC $<
+	$(SILENT)mkdir -p $(dir $@)
+	$(SILENT)$(CC) $(CFLAGS) -c -o $@ $<
+
+libchinachip$(RBARCH).a: $(TARGET_DIR)libchinachip$(RBARCH).a
+
+$(TARGET_DIR)libchinachip$(RBARCH).a: $(LIBOBJS)
+	@echo AR $(notdir $@)
+	$(SILENT)$(AR) rucs $@ $^
+
+# building the standalone executable
+$(OUTPUT): $(OBJS) $(EXTRADEPS)
+	@echo LD $@
+	$(SILENT)$(CC) $(CFLAGS) -o $(OUTPUT) $(OBJS) $(EXTRADEPS)
+
+# some trickery to build ppc and i386 from a single call
+ifeq ($(RBARCH),)
+$(TARGET_DIR)libchinachipi386.a:
+	make RBARCH=i386 TARGET_DIR=$(TARGET_DIR) libchinachipi386.a
+
+$(TARGET_DIR)libchinachipppc.a:
+	make RBARCH=ppc TARGET_DIR=$(TARGET_DIR) libchinachipppc.a
+endif
+
+libchinachip-universal: $(TARGET_DIR)libchinachipi386.a $(TARGET_DIR)libchinachipppc.a
+	@echo lipo $(TARGET_DIR)libchinachip.a
+	$(SILENT) rm -f $(TARGET_DIR)libchinachip.a
+	$(SILENT)lipo -create $(TARGET_DIR)libchinachipppc.a $(TARGET_DIR)libchinachipi386.a -output $(TARGET_DIR)libchinachip.a
 
 clean:
-	rm -f chinachip
+	rm -f $(OBJS) $(OUTPUT) libchinachip.o $(TARGET_DIR)libchinachip*.a chinachip.dmg
+	rm -rf chinachip-* i386 ppc $(OBJDIR)
+
+chinachip-i386:
+	$(MAKE) RBARCH=i386
+	mv chinachip chinachip-i386
+
+chinachip-ppc:
+	$(MAKE) RBARCH=ppc
+	mv chinachip chinachip-ppc
+
+chinachip-mac: chinachip-i386 chinachip-ppc
+	$(SILENT)lipo -create chinachip-ppc chinachip-i386 -output chinachip-mac
+
+chinachip.dmg: chinachip-mac
+	mkdir -p chinachip-dmg
+	cp -p chinachip-mac chinachip-dmg
+	hdiutil create -srcfolder chinachip-dmg chinachip.dmg