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dtc: Refactor Makefiles

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This patch makes a number of Makefile cleanups and improvements:
	- We use more generic rules to invoke flex and bison, which is
useful for some of the other changes.
	- We use the name dtc-lexer.lex.c for the flex output, instead
of the default lex.yy.c.  That means less potential for confusion if
dtc is embedded into other projects (e.g. the kernel).
	- We separate out a Makefile.dtc designed for embedding into
other projects, analagous to Makefile.libfdt.
	- Makefile.libfdt is cleaned up to be more useful based on
some actual trial runs of embedding libfdt in the kernel bootwrapper.
	- Versioning related rules and variables are collected into
one place in the Makefile.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
David Gibson 2007-10-04 15:37:43 +10:00 • committed by Jon Loeliger
parent d2a9da0458
commit ad9593f229
3 changed files with 139 additions and 106 deletions
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19
libfdt/Makefile.libfdt
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@ -3,19 +3,12 @@
# This is not a complete Makefile of itself. Instead, it is designed to
# be easily embeddable into other systems of Makefiles.
#
LIBFDT_OBJS_L = fdt.o fdt_ro.o fdt_wip.o fdt_sw.o fdt_rw.o fdt_strerror.o
LIBFDT_OBJS = $(LIBFDT_OBJS_L:%=$(LIBFDT_PREFIX)%)
LIBFDT_SRCS = fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
LIBFDT_INCLUDES = fdt.h libfdt.h
LIBFDT_EXTRA = libfdt_internal.h
LIBFDT_LIB = libfdt/libfdt.a
LIBFDT_LIB_L = libfdt.a
LIBFDT_LIB = $(LIBFDT_LIB_L:%=$(LIBFDT_PREFIX)%)
LIBFDT_OBJS = $(LIBFDT_SRCS:%.c=%.o)
LIBFDT_INCLUDES_L = fdt.h libfdt.h
LIBFDT_INCLUDES = $(LIBFDT_INCLUDES_L:%=$(LIBFDT_PREFIX)%)
$(LIBFDT_objdir)/$(LIBFDT_LIB): $(addprefix $(LIBFDT_objdir)/,$(LIBFDT_OBJS))
LIBFDT_CLEANFILES_L = *~ *.o *.d *.a $(LIBFDT_LIB) \
*.i *.s a.out core
LIBFDT_CLEANFILES = $(LIBFDT_CLEANFILES_L:%=$(LIBFDT_PREFIX)%)
$(LIBFDT_LIB): $(LIBFDT_OBJS)
LIBFDT_DEPFILES = $(LIBFDT_OBJS:%.o=%.d)