librbspeex.a: simplify Makefile for OS X.

- As done with the libucl Makefile replace the universal library handling and
  use ar to create a library from fat objects instead.
- Replace OUT with BUILD_DIR to be in line with the other Makefiles. As a
  result librbspeex will now be build in a subfolder better named than "build"
  when building with Rockbox Utility.
- Make the Makefile depend on the depencency file. This should fix problems
  with a broken dependency file not being regenerated properly, causing the
  build to fail.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31587 a1c6a512-1295-4272-9138-f99709370657

tools/rbspeex/Makefile

@@ -22,9 +22,19 @@ CFLAGS += $(SPEEXOPTS) $(INCLUDES) -O3 -fomit-frame-pointer -Wno-unused-paramete
 ifeq ($(findstring CYGWIN,$(shell uname)),CYGWIN)
 CFLAGS+=-mno-cygwin
 endif
-
-ifdef RBARCH
-CFLAGS += -arch $(RBARCH)
+# OS X specifics. Needs to consider cross compiling for Windows.
+ifeq ($(findstring Darwin,$(shell uname)),Darwin)
+ifneq ($(findstring mingw,$(CROSS)$(CC)),mingw)
+# when building libs for OS X build for both i386 and ppc at the same time.
+# This creates fat objects, and ar can only create the archive but not operate
+# on it. As a result the ar call must NOT use the u (update) flag.
+ARCHFLAGS = -arch ppc -arch i386
+# building against SDK 10.4 is not compatible with gcc-4.2 (default on newer Xcode)
+# might need adjustment for older Xcode.
+CC ?= gcc-4.0
+CFLAGS += -isysroot /Developer/SDKs/MacOSX10.4u.sdk -mmacosx-version-min=10.4
+NATIVECC ?= gcc-4.0
+endif
 endif
 
 # don't try to use the systems libspeex when building a static binary.
@@ -36,15 +46,16 @@ endif
 ifeq ($(SYS_SPEEX),)
 # This sets up 'SRC' based on the files mentioned in SOURCES
 SRC := $(shell cat $(SPEEXSRC)/SOURCES | $(CC) $(CFLAGS) -E -P - | grep -v "^\#" | grep -v "^$$")
-LIBS = $(TARGET_DIR)librbspeex$(RBARCH).a
+LIBS = $(TARGET_DIR)librbspeex.a
 else
 LIBS = $(SYS_SPEEX)
 endif
 
-OUT = $(TARGET_DIR)build$(RBARCH)
+TARGET_DIR ?= $(shell pwd)/
+BUILD_DIR ?= $(TARGET_DIR)build
 SOURCES = $(SRC:%.c=$(SPEEXSRC)/%.c) rbspeex.c rbspeexenc.c rbspeexdec.c
-OBJS = $(addprefix $(OUT)/,$(SRC:%.c=%.o))
-DEPFILE = $(OUT)/dep-speex
+OBJS = $(addprefix $(BUILD_DIR)/,$(SRC:%.c=%.o))
+DEPFILE = $(BUILD_DIR)/dep-speex
 DIRS = 
 
 .PHONY : all
@@ -52,14 +63,14 @@ DIRS =
 all: ../rbspeexenc ../rbspeexdec
 
 $(DEPFILE): $(SOURCES)
-	@echo MKDIR $(OUT)
-	$(SILENT)mkdir -p $(OUT)
+	@echo MKDIR $(BUILD_DIR)
+	$(SILENT)mkdir -p $(BUILD_DIR)
 	@echo Creating dependencies
 	$(SILENT)rm -f $(DEPFILE)
 	$(SILENT)(for each in $(SOURCES) x; do \
 	    if test "x" != "$$each"; then \
 	        obj=`echo $$each | sed -e 's/\.[cS]/.o/' | sed -e 's/^.*\///' `; \
-	        $(CC) -MG -MM -MT "$(OUT)/$$obj" $(CFLAGS) $$each 2>/dev/null; \
+	        $(CC) -MG -MM -MT "$(BUILD_DIR)/$$obj" $(CFLAGS) $$each 2>/dev/null; \
 	    fi; \
 	    if test -n "$$del"; then \
 	        rm $$del; \
@@ -68,56 +79,41 @@ $(DEPFILE): $(SOURCES)
 	done > $(DEPFILE); \
 	echo "oo" > /dev/null )
 
--include $(DEPFILE)
+include $(DEPFILE)
 
 dll: $(TARGET_DIR)rbspeex.dll
 	
-$(TARGET_DIR)rbspeex.dll: $(OBJS) $(OUT)/rbspeex.o
+$(TARGET_DIR)rbspeex.dll: $(OBJS) $(BUILD_DIR)/rbspeex.o
 	@echo DLL $(notdir $@)
 	$(SILENT)$(CROSS)$(CC) $(CFLAGS) -shared -o $@ $^ \
 		    -Wl,--output-def,$(TARGET_DIR)rbspeex.def
 
-$(OUT)/librbspeex.a: $(OBJS) $(DEPFILE) $(OUT)/rbspeex.o 
+$(TARGET_DIR)librbspeex.a: $(OBJS) $(BUILD_DIR)/rbspeex.o
 	@echo AR $(notdir $@)
-	$(SILENT)$(CROSS)$(AR) rucs $@ $+ > /dev/null 2>&1
+	$(SILENT)rm -f $@
+	$(SILENT)$(CROSS)$(AR) rcs $@ $^ > /dev/null 2>&1
 
-librbspeex$(RBARCH).a: $(OUT)/librbspeex.a
-	$(SILENT)cp $(OUT)/librbspeex.a $(TARGET_DIR)librbspeex$(RBARCH).a
+librbspeex.a: $(TARGET_DIR)librbspeex.a
 	
-../rbspeexenc: $(OBJS) $(OUT)/rbspeexenc.o librbspeex$(RBARCH).a
+../rbspeexenc: $(OBJS) $(BUILD_DIR)/rbspeexenc.o librbspeex.a
 	@echo Linking ../rbspeexenc
-	$(SILENT)$(CROSS)$(CC) $(CFLAGS) -o ../rbspeexenc $(OUT)/rbspeexenc.o \
-		    $(LIBS) -lm $(TARGET_DIR)librbspeex$(RBARCH).a
+	$(SILENT)$(CROSS)$(CC) $(CFLAGS) $(ARCHFLAGS) -o ../rbspeexenc $(BUILD_DIR)/rbspeexenc.o \
+		    $(LIBS) -lm $(TARGET_DIR)librbspeex.a
 
-../rbspeexdec: $(OBJS) librbspeex$(RBARCH).a $(OUT)/rbspeexdec.o 
+../rbspeexdec: $(OBJS) librbspeex.a $(BUILD_DIR)/rbspeexdec.o
 	@echo Linking ../rbspeexdec
-	$(SILENT)$(CROSS)$(CC) $(CFLAGS) -o ../rbspeexdec $(OUT)/rbspeexdec.o \
-		    $(LIBS) -lm $(TARGET_DIR)librbspeex$(RBARCH).a
+	$(SILENT)$(CROSS)$(CC) $(CFLAGS) $(ARCHFLAGS) -o ../rbspeexdec $(BUILD_DIR)/rbspeexdec.o \
+		    $(LIBS) -lm $(TARGET_DIR)librbspeex.a
 
 %.o:
 	@echo CC $<
-	$(SILENT)$(CROSS)$(CC) $(CFLAGS) -c $< -o $@
-
-# some trickery to build ppc and i386 from a single call
-ifeq ($(RBARCH),)
-librbspeexi386.a:
-	make RBARCH=i386 TARGET_DIR=$(TARGET_DIR) librbspeexi386.a
-
-librbspeexppc.a:
-	make RBARCH=ppc TARGET_DIR=$(TARGET_DIR) librbspeexppc.a
-endif
-
-librbspeex-universal: librbspeexi386.a librbspeexppc.a
-	@echo lipo librbspeex.a
-	$(SILENT) rm -f $(TARGET_DIR)librbspeex.a
-	$(SILENT)lipo -create $(TARGET_DIR)librbspeexppc.a \
-	    $(TARGET_DIR)librbspeexi386.a -output $(TARGET_DIR)librbspeex.a
+	$(SILENT)$(CROSS)$(CC) $(CFLAGS) $(ARCHFLAGS) -c $< -o $@
 
 clean:
 	rm -f $(OBJS) $(TARGET_DIR)librbspeex* ../rbspeexenc ../rbspeexdec $(TARGET_DIR)dep-speex
 	rm -rf build*
 
-$(OUT):
-	@echo MKDIR $(OUT)
-	$(SILENT)mkdir $(OUT)
+$(BUILD_DIR):
+	@echo MKDIR $(BUILD_DIR)
+	$(SILENT)mkdir $(BUILD_DIR)