Re: [cc65] Please critique this makefile

Hi,

> http://www.pascalschmidt.de/cc65/Makefile

Now that I understand how to use cl65 the right way I changed the
Makefile to do so thus turning it somewhat cleaner.

Some more notes:

- The -I $(SOURCEDIR) compiler option reflects the recent discussion
about where #include "" searches for files. cc65 goes for the current
directory and not for the directory of the file containing the
#include directive.

- Before the sed script just replaced .s with .o but now it replaces
$(<:.c=.s) with $@ because it's not only about the file extension
anymore but about the (later deleted) .s file residing in the source
directory.

- When using cl65 for compiling it seemed cleaner to use it as well
for assembling and linking.

Regards,
Oliver

SOURCEDIR := src
OBJECTDIR := obj

PROGRAM := foobar

CFLAGS  := -O
ASFLAGS :=
LDFLAGS :=

################################################################################

CC := $(CC65_HOME)/bin/cl65

SOURCES := $(wildcard $(SOURCEDIR)/*.c)
DEPENDS := $(addsuffix .d,$(basename $(addprefix
$(OBJECTDIR)/,$(notdir $(SOURCES)))))
SOURCES += $(wildcard $(SOURCEDIR)/*.s)
OBJECTS := $(addsuffix .o,$(basename $(addprefix
$(OBJECTDIR)/,$(notdir $(SOURCES)))))

.SUFFIXES:
.PHONY: all clean
all: $(PROGRAM)

ifneq ($(MAKECMDGOALS),clean)
-include $(DEPENDS)
endif

$(OBJECTDIR):
	mkdir $@

$(OBJECTDIR)/%.o: $(SOURCEDIR)/%.c | $(OBJECTDIR)
	$(CC) -t $(CC65_TARGET) -I $(SOURCEDIR) $(CFLAGS) --create-dep -c -o $@ $<
	@sed -e"s!$(<:.c=.s)!$@!p" -e"s![^\t]*\t\(.*\)!\1:!" < $(<:.c=.u) > $(@:.o=.d)
	@rm -f $(<:.c=.u)

$(OBJECTDIR)/%.o: $(SOURCEDIR)/%.s | $(OBJECTDIR)
	$(CC) -t $(CC65_TARGET) -I $(SOURCEDIR) $(ASFLAGS) -c -o $@ $<

$(PROGRAM): $(OBJECTS)
	$(CC) -t $(CC65_TARGET) $(LDFLAGS) -o $@ -m $@.map $^

clean:
	rm -f $(OBJECTS) $(DEPENDS) $(PROGRAM) $(PROGRAM).map
	rmdir $(OBJECTDIR)
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