# requires lua, curl and zlib (in the future, lua will be statically linked)
libraries := -llua -lcurl -lz
flags := -Wall

# lua is required in the build process, in order to compile the bytecode
lua := lua
cc := gcc

dst_dir = dst
src_main_dir = src/main
src_entry_dir = src/entry

# Uncomment to get debugging symbols
# flags := -g

main_sources += $(wildcard $(src_main_dir)/*.lua)
main_sources += $(wildcard $(src_main_dir)/cli/*.lua)
main_sources += $(wildcard $(src_main_dir)/formats/*.lua)
main_sources += $(wildcard $(src_main_dir)/util/*.lua)

c_sources = $(wildcard $(src_entry_dir)/*.c)

build_entry = $(src_entry_dir)/build.lua

target = $(dst_dir)/slimpack
bytecode_target = $(dst_dir)/bytecode.h

.PHONY: build

build: $(target)

$(dst_dir):
	mkdir -p $@

$(bytecode_target): $(main_sources) $(dst_dir) $(build_entry)
	$(lua) $(build_entry) $(src_main_dir) $@ $(main_sources)
$(target): $(c_sources) $(bytecode_target) $(dst_dir)
	$(cc) $(flags) $(libraries) -include $(bytecode_target) $(c_sources) -o $@