# An extern C file to compile
class ExternCFile
	super ExternFile

	# Custom options for the C compiler (CFLAGS)
	var cflags: String

	redef fun hash do return filename.hash
	redef fun ==(o) do return o isa ExternCFile and filename == o.filename

	redef fun makefile_rule_name do
		var basename = filename.basename(".c")
		var res = "{basename}.extern.o"
		return res
	end

	redef fun makefile_rule_content do
		var ff = filename.basename
		var o = makefile_rule_name
		var pkg = ""
		if not pkgconfigs.is_empty then
			pkg = "`pkg-config --cflags {pkgconfigs.join(" ")}`"
		end
		return "$(CC) $(CFLAGS) -Wall -Wno-unused-function {self.cflags} {pkg} -c -o {o} {ff}"
	end

	redef fun compiles_to_o_file do return true
end