New makefile solution: A single invocation of 'make' to build the entire tree. Fully controlled dependencies give faster and more correct recompiles.

Many #include lines adjusted to conform to the new standards.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19146 a1c6a512-1295-4272-9138-f99709370657

tools/functions.make

@@ -0,0 +1,68 @@
+#             __________               __   ___.
+#   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+#   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+#   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+#   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+#                     \/            \/     \/    \/            \/
+# $Id: Makefile 19082 2008-11-10 23:54:24Z zagor $
+#
+
+# preprocess - run preprocessor on a file and return the result as a string
+#
+# This uses the native 'gcc' compiler and not $(CC) since we use the -imacros
+# option and older gcc compiler doesn't have that. We use one such older
+# compiler for the win32 cross-compiles on Linux.
+#
+# The weird grep -v thing in here is due to Apple's stupidities and is needed
+# to make this do right when used on Mac OS X.
+#
+# The sed line is to prepend the directory to all source files
+
+preprocess = $(shell $(CC) $(PPCFLAGS) $(2) -E -P -x c -include config.h $(1) | \
+		grep -v '^\#' | \
+		sed -e 's:^.\+:$(dir $(1))&:')
+
+preprocess2file = $(shell $(CC) $(PPCFLAGS) $(3) -E -P -x c -include config.h $(1) | \
+		grep -v '^\#' | grep -v "^$$" > $(2))
+
+c2obj = $(subst .c,.o,$(subst .S,.o,$(subst $(ROOTDIR),$(BUILDDIR),$(1))))
+
+# calculate dependencies for a list of source files $(2) and output them
+# to a file $(1)
+
+mkdepfile = $(shell \
+	for each in $(2); do \
+	    obj=`echo $$each | sed -e 's/\.[cS]/.o/' -e 's:$(ROOTDIR):$(BUILDDIR):'`; \
+	       $(CC) $(PPCFLAGS) $(OTHER_INC) -MG -MM -include config.h -MT "$$obj" $$each 2>/dev/null; \
+	done | sed -e "s: lang.h: $(BUILDDIR)/lang.o:" \
+	-e "s: sysfont.h: $(BUILDDIR)/sysfont.h:" \
+	-e "s: max_language_size.h: $(BUILDDIR)/max_language_size.h:" \
+	-e "s: bitmaps/: $(BUILDDIR)/bitmaps/:g" \
+	-e "s: pluginbitmaps/: $(BUILDDIR)/pluginbitmaps/:g" \
+	-e "s: lib/: $(APPSDIR)/plugins/lib/:g" \
+	-e "s: codeclib.h: $(APPSDIR)/codecs/lib/codeclib.h:g" \
+	> $(1); )
+
+# function to create .bmp dependencies
+bmpdepfile = $(shell \
+	for each in $(2); do \
+	    obj=`echo $$each | sed -e 's/\.bmp/.o/' -e 's:$(ROOTDIR):$(BUILDDIR):'`; \
+	    src=`echo $$each | sed -e 's/\.bmp/.c/' -e 's:$(ROOTDIR):$(BUILDDIR):'`; \
+	    echo $$obj: $$src; \
+	    echo $$src: $$each; \
+	done \
+	>> $(1); )
+
+ifndef V
+SILENT:=@
+else
+VERBOSEOPT:=-v
+endif
+PRINTS=$(SILENT)$(call info,$(1))
+
+# old 'make' versions don't have the built-in 'info' function
+info=old$(shell echo >&2 "Consider upgrading to GNU make 3.81+ for optimum build performance.")
+ifeq ($(call info),old)
+export info=echo "$$(1)";
+endif
+