# Example makefile which makes a "libccan.a" of everything under ccan/.
# For simple projects you could just do:
#	SRCFILES += $(wildcard ccan/*/*.c)

#CCAN_CFLAGS=-g -O3 -Wall -Wstrict-prototypes -Wold-style-definition -Wmissing-prototypes -Wmissing-declarations
CCAN_CFLAGS=-g3 -ggdb -Wall -Wstrict-prototypes -Wold-style-definition -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wwrite-strings -DCCAN_STR_DEBUG=1
CFLAGS = $(CCAN_CFLAGS) -I. $(DEPGEN)


default: libccan.a

# Automatic dependency generation: makes ccan/*/*.d files.
DEPGEN=-MD
-include ccan/*/*.d

# Anything with an _info file is a module.
REALLY_ALL=$(patsubst ccan/%/_info, %, $(wildcard ccan/*/_info))

# Exclude any modules we can't build.
ALL=$(filter-out $(EXCLUDE), $(REALLY_ALL))

# Anything with C files needs building; dir leaves / on, sort uniquifies
DIRS=$(patsubst %/, %, $(sort $(foreach m, $(ALL), $(dir $(wildcard ccan/$m/*.c)))))

# Generate everyone's separate Makefiles.
-include $(foreach dir, $(DIRS), $(dir)-Makefile)

ccan/%-Makefile:
	@echo $@: $(wildcard ccan/$*/*.[ch]) ccan/$*/_info > $@
	@echo ccan/$*.o: $(patsubst %.c, %.o, $(wildcard ccan/$*/*.c)) >> $@

# We compile all the ccan/foo/*.o files together into ccan/foo.o
OBJFILES=$(DIRS:=.o)

# We create all the .o files and link them together.
$(OBJFILES): %.o:
	$(LD) -r -o $@ $^

libccan.a: $(OBJFILES)
	$(AR) r $@ $(OBJFILES)