Remove `presym` files before writing just to make sure.
MODIFY
Rakefile
Rakefile
@@ -131,6 +131,7 @@ file presym_file => cfiles+rbfiles do
symbols = (csymbols+rbsymbols).flatten.uniq.sort
presyms = File.readlines(presym_file, chomp: true) rescue []
if presyms != symbols
+ rm_f presym_file
File.write(presym_file, symbols.join("\n"))
end
end
@@ -138,6 +139,7 @@ end
presym_inc=presym_file+".inc"
file presym_inc => presym_file do
presyms = File.readlines(presym_file, chomp: true)
+ rm_f presym_inc
File.open(presym_inc, "w") do |f|
f.print "/* MRB_PRESYM_CSYM(sym, num) - symbol which is valid C id name */\n"
f.print "/* MRB_PRESYM_SYM(sym, num) - symbol which is not valid C id */\n\n"

Remove `presym` files before writing just to make sure.