Update OS X library building.

- As done with libucl and librbspeex, create universal libraries using ar
  instead of building twice and using lipo. This notably simplifies things.
- Allow overwriting the compiler via command line. This is required for
  building on OS X.
- Update Rockbox Utility to the changed library rules. Fixes building which was
  broken by the previous Makefile changes.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31588 a1c6a512-1295-4272-9138-f99709370657

rbutil/libtools.make

@@ -42,10 +42,15 @@ endif
 endif
 endif
 
-NATIVECC = gcc
+NATIVECC ?= gcc
 CC ?= gcc
+# 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.
+CFLAGS += -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
@@ -105,27 +110,11 @@ $(TARGET_DIR)$(OUTPUT).dll: $(LIBOBJS) $(addprefix $(OBJDIR),$(EXTRALIBOBJS))
 	$(SILENT)$(CROSS)$(CC) $(CFLAGS) -shared -o $@ $^ \
 		    -Wl,--output-def,$(TARGET_DIR)$(OUTPUT).def
 
+# create lib file from objects
 $(TARGET_DIR)lib$(OUTPUT)$(RBARCH).a: $(LIBOBJS) $(addprefix $(OBJDIR),$(EXTRALIBOBJS))
 	@echo AR $(notdir $@)
 	$(SILENT)mkdir -p $(dir $@)
-	$(SILENT)$(AR) rucs $@ $^
+	$(SILENT)$(AR) rcs $@ $^
-
-# some trickery to build ppc and i386 from a single call
-ifeq ($(RBARCH),)
-$(TARGET_DIR)lib$(OUTPUT)i386.a:
-	make RBARCH=i386 TARGET_DIR=$(TARGET_DIR) lib$(OUTPUT)i386.a
-
-$(TARGET_DIR)lib$(OUTPUT)ppc.a:
-	make RBARCH=ppc TARGET_DIR=$(TARGET_DIR) lib$(OUTPUT)ppc.a
-endif
-
-lib$(OUTPUT)-universal: $(TARGET_DIR)lib$(OUTPUT)i386.a \
-			$(TARGET_DIR)lib$(OUTPUT)ppc.a
-	@echo LIPO $(notdir $(TARGET_DIR)lib$(OUTPUT).a)
-	$(SILENT) rm -f $(TARGET_DIR)lib$(OUTPUT).a
-	$(SILENT)lipo -create $(TARGET_DIR)lib$(OUTPUT)i386.a \
-			      $(TARGET_DIR)lib$(OUTPUT)ppc.a \
-			      -output $(TARGET_DIR)lib$(OUTPUT).a
 
 clean:
 	rm -f $(OBJS) $(OUTPUT) $(TARGET_DIR)lib$(OUTPUT)*.a $(OUTPUT).dmg

rbutil/rbutilqt/rbutilqt.pro

@@ -52,13 +52,6 @@ RBBASE_DIR = $$replace(RBBASE_DIR,/rbutil/rbutilqt,)
 
 message("Rockbox Base dir: "$$RBBASE_DIR)
 
-# custom rules for rockbox-specific libs
-!mac {
-    RBLIBPOSTFIX = .a
-}
-mac {
-    RBLIBPOSTFIX = -universal
-}
 # check for system speex. Add a custom rule for pre-building librbspeex if not
 # found. Newer versions of speex are split up into libspeex and libspeexdsp,
 # and some distributions package them separately. Check for both and fall back
@@ -83,54 +76,54 @@ librbspeex.commands = $$ADDENV \
         TARGET_DIR=$$MYLIBBUILDDIR \
         SYS_SPEEX=\"$$LIBSPEEX\" \
         CC=\"$$QMAKE_CC\" CFLAGS=\"$$MACHINEFLAGS\" AR=\"$$MYAR\" \
-        $(MAKE) -C $$RBBASE_DIR/tools/rbspeex librbspeex$$RBLIBPOSTFIX
+        $(MAKE) -C $$RBBASE_DIR/tools/rbspeex librbspeex.a
 libucl.commands = $$ADDENV \
         BUILD_DIR=$$MYLIBBUILDDIR/ucl/ \
         TARGET_DIR=$$MYLIBBUILDDIR \
         CC=\"$$QMAKE_CC\" CFLAGS=\"$$MACHINEFLAGS\" AR=\"$$MYAR\" \
-        $(MAKE) -C $$RBBASE_DIR/tools/ucl/src libucl$$RBLIBPOSTFIX
+        $(MAKE) -C $$RBBASE_DIR/tools/ucl/src libucl.a
 libipodpatcher.commands = $$ADDENV \
         BUILD_DIR=$$MYLIBBUILDDIR/ipodpatcher/ \
         TARGET_DIR=$$MYLIBBUILDDIR \
         APPVERSION=\"rbutil\" \
         CC=\"$$QMAKE_CC\" CFLAGS=\"$$MACHINEFLAGS\" AR=\"$$MYAR\" \
-        $(MAKE) -C $$RBBASE_DIR/rbutil/ipodpatcher libipodpatcher$$RBLIBPOSTFIX
+        $(MAKE) -C $$RBBASE_DIR/rbutil/ipodpatcher libipodpatcher.a
 libsansapatcher.commands = $$ADDENV \
         BUILD_DIR=$$MYLIBBUILDDIR/sansapatcher/ \
         TARGET_DIR=$$MYLIBBUILDDIR \
         APPVERSION=\"rbutil\" \
         CC=\"$$QMAKE_CC\" CFLAGS=\"$$MACHINEFLAGS\" AR=\"$$MYAR\" \
-        $(MAKE) -C $$RBBASE_DIR/rbutil/sansapatcher libsansapatcher$$RBLIBPOSTFIX
+        $(MAKE) -C $$RBBASE_DIR/rbutil/sansapatcher libsansapatcher.a
 libmkamsboot.commands = $$ADDENV \
         BUILD_DIR=$$MYLIBBUILDDIR/mkamsboot/ \
         TARGET_DIR=$$MYLIBBUILDDIR \
         APPVERSION=\"rbutil\" \
         CC=\"$$QMAKE_CC\" CFLAGS=\"$$MACHINEFLAGS\" AR=\"$$MYAR\" \
-        $(MAKE) -C $$RBBASE_DIR/rbutil/mkamsboot libmkamsboot$$RBLIBPOSTFIX
+        $(MAKE) -C $$RBBASE_DIR/rbutil/mkamsboot libmkamsboot.a
 libmktccboot.commands = $$ADDENV \
         BUILD_DIR=$$MYLIBBUILDDIR/mktccboot/ \
         TARGET_DIR=$$MYLIBBUILDDIR \
         APPVERSION=\"rbutil\" \
         CC=\"$$QMAKE_CC\" CFLAGS=\"$$MACHINEFLAGS\" AR=\"$$MYAR\" \
-        $(MAKE) -C $$RBBASE_DIR/rbutil/mktccboot libmktccboot$$RBLIBPOSTFIX
+        $(MAKE) -C $$RBBASE_DIR/rbutil/mktccboot libmktccboot.a
 libmkmpioboot.commands = $$ADDENV \
         BUILD_DIR=$$MYLIBBUILDDIR/mkmpioboot/ \
         TARGET_DIR=$$MYLIBBUILDDIR \
         APPVERSION=\"rbutil\" \
         CC=\"$$QMAKE_CC\" CFLAGS=\"$$MACHINEFLAGS\" AR=\"$$MYAR\" \
-        $(MAKE) -C $$RBBASE_DIR/rbutil/mkmpioboot libmkmpioboot$$RBLIBPOSTFIX
+        $(MAKE) -C $$RBBASE_DIR/rbutil/mkmpioboot libmkmpioboot.a
 libchinachippatcher.commands = $$ADDENV \
         BUILD_DIR=$$MYLIBBUILDDIR/chinachippatcher/ \
         TARGET_DIR=$$MYLIBBUILDDIR \
         APPVERSION=\"rbutil\" \
         CC=\"$$QMAKE_CC\" CFLAGS=\"$$MACHINEFLAGS\" AR=\"$$MYAR\" \
-        $(MAKE) -C $$RBBASE_DIR/rbutil/chinachippatcher libchinachippatcher$$RBLIBPOSTFIX
+        $(MAKE) -C $$RBBASE_DIR/rbutil/chinachippatcher libchinachippatcher.a
 libmkimxboot.commands = $$ADDENV \
         BUILD_DIR=$$MYLIBBUILDDIR/mkimxboot/ \
         TARGET_DIR=$$MYLIBBUILDDIR \
         APPVERSION=\"rbutil\" \
         CC=\"$$QMAKE_CC\" CFLAGS=\"$$MACHINEFLAGS\" AR=\"$$MYAR\" \
-        $(MAKE) -C $$RBBASE_DIR/rbutil/mkimxboot libmkimxboot$$RBLIBPOSTFIX
+        $(MAKE) -C $$RBBASE_DIR/rbutil/mkimxboot libmkimxboot.a
 # Note: order is important for RBLIBS! The libs are appended to the linker
 # flags in this order, put libucl at the end.
 RBLIBS = librbspeex libipodpatcher libsansapatcher libmkamsboot libmktccboot \