# vim: noexpandtab tabstop=4 :

buildtype ?= release

optionset = buildtypes/${buildtype}.txt

prefix = bin/${buildtype}-buildtype

default: ${prefix}/13

on_error ?= do_nothing
ifeq ($(on_error), do_nothing)
on_error_command =
else ifeq ($(on_error), open_editor)
on_error_command += || ($$EDITOR ${*}.c; false)
else
$(error "invalid on_error option!");
endif

.PRECIOUS: %/

%/:
	@mkdir -p $@

srclist.mk:
	@echo "searching for source files ..."
	@find -name '*.c*' -! -path '*/bin/*' -! -path '*/junk/*' \
		| sed 's/.cpp$$/.c/g;s/^/srcs += /g' \
		| sort -Vu > ${@}

include srclist.mk

.PRECIOUS: %.c

%.c: %.cpp ./extern/zpp/zpp | bin/
	@echo "preprocessing ${<} ..."
	@./extern/zpp/zpp $< --snippet-directory=bin -o $@

${prefix}/%.o ${prefix}/%.d: %.c ${optionset} | ${prefix}/%/
	@echo "compiling (${buildtype}) ${*}.c ..."
	@gcc -c @${optionset} $< -MD -MF ${prefix}/${*}.d -o ${prefix}/${*}.o $(on_error_command)

objs = $(patsubst %.c,${prefix}/%.o,${srcs})

${prefix}/13: ${objs} ${optionset} | ${prefix}/
	@echo "linking (${buildtype})"
	@gcc @${optionset} ${objs} -o ${@} -lm

args += --echo
args += --color

args += --no-init

#args += --custom-init-path ./examples/init.txt

#args += -c '1'

#args += ./examples/sandbox.txt

args += --test-interactive-using-input-file ./examples/sandbox-interactive.txt

run: ${prefix}/13
	$< ${args}

valrun: ${prefix}/13
	valgrind --exit-on-first-error=yes --error-exitcode=1 -- $< ${args}

valrun-leak: ${prefix}/13
	valgrind --exit-on-first-error=yes --error-exitcode=1 --leak-check=full -- $< ${args}

include $(patsubst %.c,${prefix}/%.d,${srcs})