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# Define the rule for all FASM programs.

# Yes, this looks like a black magic.

# But it is not so scary as it seems.

# First, we define "meta-rule" as a rule which is

# macro depending on $(fasmprog).

# Second, the construction foreach+eval creates

# usual rules, one for each $(fasmprog) in $(FASM_PROGRAMS).

# Note that meta-rule is double-expanded, first

# time as the arg of eval - it is the place where $(fasmprog)

# gets expanded - and second time as the rule;

# so all $ which are expected to expand at the second time should be escaped.

# And all $ which are expected to be expanded by the shell should be escaped

# twice, so they become $$$$.

# The arguments of macro fasm_meta_rule:

# $(2) = name of main source file.

# $(3) = folder of binary file - without spaces.

# $(4) = name of program - without path and extension,

define fasm_meta_rule

$(1): $(2) Makefile .deps/.dir $$(call respace,$$(addsuffix .dir,$(3)))

	fasm -m 65536 $$< "$$@" -s .deps/$(4).fas

	prepsrc .deps/$(4).fas /dev/null

	prepsrc .deps/$(4).fas /dev/stdout | (echo -n '$(1):' && \

	perl -ne 's|\\|/|g;print " \\\n $$$$1" if /^;include \x27(.*?)\x27/' \

	&& echo) > .deps/$(4).Po

-include .deps/$(4).Po

endef

progname=$(call respace,$(basename $(notdir $(call binarypart,$(f)))))

binarydir=$(subst ./,,$(dir $(call binarypart,$(f))))

$(foreach f,$(FASM_PROGRAMS),$(eval $(call fasm_meta_rule,$(fbinary),$(fsource),$(binarydir),$(progname))))

# Rule for the kernel differs: it uses kerpack instead of kpack.

kernel.mnt: $(KERNEL)/kernel.asm Makefile .deps/.dir

	fasm -m 65536 $< "$@" -s .deps/kernel.fas

	prepsrc .deps/kernel.fas /dev/null

	prepsrc .deps/kernel.fas /dev/stdout | (echo -n 'kernel.mnt:' && \

	perl -ne 's|\\|/|g;print " \\\n $$1" if /^;include \x27(.*?)\x27/' \

	&& echo) > .deps/kernel.Po

	kerpack $@